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Finding the Third Proportional to 109,497.75 and 121,017.75

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Solution

The third proportional to 109,497.75 and 121,017.75 is: 133,749.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,497.75 : 121,017.75 = 121,017.75 : x
  2. Step 2: Convert to fraction form
    109,497.75/121,017.75 = 121,017.75/x
  3. Step 3: Cross multiply
    109,497.75x = 121,017.75 × 121,017.75
  4. Step 4: Simplify right side
    109,497.75x = 14,645,295,815.06
  5. Step 5: Solve for x
    x = 14,645,295,815.06/109,497.75
  6. Step 6: Final answer
    x = 133,749.74

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