Finding the Third Proportional to 64,785 and 86,098.50

Step by Step Solution

1. Step 1: Write the proportion equation
   64,785 : 86,098.50 = 86,098.50 : x
2. Step 2: Convert to fraction form
   64,785/86,098.50 = 86,098.50/x
3. Step 3: Cross multiply
   64,785x = 86,098.50 × 86,098.50
4. Step 4: Simplify right side
   64,785x = 7,412,951,702.25
5. Step 5: Solve for x
   x = 7,412,951,702.25/64,785
6. Step 6: Final answer
   x = 114,423.89