Finding the Third Proportional to 71,791.31 and 102,758.63

Step by Step Solution

1. Step 1: Write the proportion equation
   71,791.31 : 102,758.63 = 102,758.63 : x
2. Step 2: Convert to fraction form
   71,791.31/102,758.63 = 102,758.63/x
3. Step 3: Cross multiply
   71,791.31x = 102,758.63 × 102,758.63
4. Step 4: Simplify right side
   71,791.31x = 10,559,335,011.89
5. Step 5: Solve for x
   x = 10,559,335,011.89/71,791.31
6. Step 6: Final answer
   x = 147,083.74