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Finding the Third Proportional to 408,057.75 and 621,114.75

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Solution

The third proportional to 408,057.75 and 621,114.75 is: 945,414.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,057.75 : 621,114.75 = 621,114.75 : x
  2. Step 2: Convert to fraction form
    408,057.75/621,114.75 = 621,114.75/x
  3. Step 3: Cross multiply
    408,057.75x = 621,114.75 × 621,114.75
  4. Step 4: Simplify right side
    408,057.75x = 385,783,532,667.56
  5. Step 5: Solve for x
    x = 385,783,532,667.56/408,057.75
  6. Step 6: Final answer
    x = 945,414.06

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