Finding the Third Proportional to 91,543.61 and 137,225.71

Step by Step Solution

1. Step 1: Write the proportion equation
   91,543.61 : 137,225.71 = 137,225.71 : x
2. Step 2: Convert to fraction form
   91,543.61/137,225.71 = 137,225.71/x
3. Step 3: Cross multiply
   91,543.61x = 137,225.71 × 137,225.71
4. Step 4: Simplify right side
   91,543.61x = 18,830,894,670.23
5. Step 5: Solve for x
   x = 18,830,894,670.23/91,543.61
6. Step 6: Final answer
   x = 205,704.10