Finding the Third Proportional to 91,763.72 and 129,225.38

Step by Step Solution

1. Step 1: Write the proportion equation
   91,763.72 : 129,225.38 = 129,225.38 : x
2. Step 2: Convert to fraction form
   91,763.72/129,225.38 = 129,225.38/x
3. Step 3: Cross multiply
   91,763.72x = 129,225.38 × 129,225.38
4. Step 4: Simplify right side
   91,763.72x = 16,699,197,543.89
5. Step 5: Solve for x
   x = 16,699,197,543.89/91,763.72
6. Step 6: Final answer
   x = 181,980.39