Finding the Third Proportional to 98,540.50 and 216,156.25

Step by Step Solution

1. Step 1: Write the proportion equation
   98,540.50 : 216,156.25 = 216,156.25 : x
2. Step 2: Convert to fraction form
   98,540.50/216,156.25 = 216,156.25/x
3. Step 3: Cross multiply
   98,540.50x = 216,156.25 × 216,156.25
4. Step 4: Simplify right side
   98,540.50x = 46,723,524,414.06
5. Step 5: Solve for x
   x = 46,723,524,414.06/98,540.50
6. Step 6: Final answer
   x = 474,155.54