Finding the Third Proportional to 64,478.25 and 98,569.13

Step by Step Solution

1. Step 1: Write the proportion equation
   64,478.25 : 98,569.13 = 98,569.13 : x
2. Step 2: Convert to fraction form
   64,478.25/98,569.13 = 98,569.13/x
3. Step 3: Cross multiply
   64,478.25x = 98,569.13 × 98,569.13
4. Step 4: Simplify right side
   64,478.25x = 9,715,872,403.27
5. Step 5: Solve for x
   x = 9,715,872,403.27/64,478.25
6. Step 6: Final answer
   x = 150,684.49