Finding the Third Proportional to 72,902.50 and 151,621.75

Step by Step Solution

1. Step 1: Write the proportion equation
   72,902.50 : 151,621.75 = 151,621.75 : x
2. Step 2: Convert to fraction form
   72,902.50/151,621.75 = 151,621.75/x
3. Step 3: Cross multiply
   72,902.50x = 151,621.75 × 151,621.75
4. Step 4: Simplify right side
   72,902.50x = 22,989,155,073.06
5. Step 5: Solve for x
   x = 22,989,155,073.06/72,902.50
6. Step 6: Final answer
   x = 315,341.11