Finding the Third Proportional to 71,791.88 and 105,613.88

Step by Step Solution

1. Step 1: Write the proportion equation
   71,791.88 : 105,613.88 = 105,613.88 : x
2. Step 2: Convert to fraction form
   71,791.88/105,613.88 = 105,613.88/x
3. Step 3: Cross multiply
   71,791.88x = 105,613.88 × 105,613.88
4. Step 4: Simplify right side
   71,791.88x = 11,154,290,592.52
5. Step 5: Solve for x
   x = 11,154,290,592.52/71,791.88
6. Step 6: Final answer
   x = 155,369.82