Finding the Third Proportional to 98,957.50 and 215,676

Step by Step Solution

1. Step 1: Write the proportion equation
   98,957.50 : 215,676 = 215,676 : x
2. Step 2: Convert to fraction form
   98,957.50/215,676 = 215,676/x
3. Step 3: Cross multiply
   98,957.50x = 215,676 × 215,676
4. Step 4: Simplify right side
   98,957.50x = 46,516,136,976
5. Step 5: Solve for x
   x = 46,516,136,976/98,957.50
6. Step 6: Final answer
   x = 470,061.76