Finding the Third Proportional to 90,737.72 and 140,788.13

Step by Step Solution

1. Step 1: Write the proportion equation
   90,737.72 : 140,788.13 = 140,788.13 : x
2. Step 2: Convert to fraction form
   90,737.72/140,788.13 = 140,788.13/x
3. Step 3: Cross multiply
   90,737.72x = 140,788.13 × 140,788.13
4. Step 4: Simplify right side
   90,737.72x = 19,821,296,141.02
5. Step 5: Solve for x
   x = 19,821,296,141.02/90,737.72
6. Step 6: Final answer
   x = 218,446.05