Finding the Third Proportional to 64,385 and 102,449.50

Step by Step Solution

1. Step 1: Write the proportion equation
   64,385 : 102,449.50 = 102,449.50 : x
2. Step 2: Convert to fraction form
   64,385/102,449.50 = 102,449.50/x
3. Step 3: Cross multiply
   64,385x = 102,449.50 × 102,449.50
4. Step 4: Simplify right side
   64,385x = 10,495,900,050.25
5. Step 5: Solve for x
   x = 10,495,900,050.25/64,385
6. Step 6: Final answer
   x = 163,017.78