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Finding the Third Proportional to 398,904.75 and 864,268.88

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Solution

The third proportional to 398,904.75 and 864,268.88 is: 1,872,528.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,904.75 : 864,268.88 = 864,268.88 : x
  2. Step 2: Convert to fraction form
    398,904.75/864,268.88 = 864,268.88/x
  3. Step 3: Cross multiply
    398,904.75x = 864,268.88 × 864,268.88
  4. Step 4: Simplify right side
    398,904.75x = 746,960,688,293.77
  5. Step 5: Solve for x
    x = 746,960,688,293.77/398,904.75
  6. Step 6: Final answer
    x = 1,872,528.94

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