Finding the Third Proportional to 72,976 and 157,209.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,976 : 157,209.50 = 157,209.50 : x
2. Step 2: Convert to fraction form
   72,976/157,209.50 = 157,209.50/x
3. Step 3: Cross multiply
   72,976x = 157,209.50 × 157,209.50
4. Step 4: Simplify right side
   72,976x = 24,714,826,890.25
5. Step 5: Solve for x
   x = 24,714,826,890.25/72,976
6. Step 6: Final answer
   x = 338,670.62