Finding the Third Proportional to 58,309.88 and 87,449.63

Step by Step Solution

1. Step 1: Write the proportion equation
   58,309.88 : 87,449.63 = 87,449.63 : x
2. Step 2: Convert to fraction form
   58,309.88/87,449.63 = 87,449.63/x
3. Step 3: Cross multiply
   58,309.88x = 87,449.63 × 87,449.63
4. Step 4: Simplify right side
   58,309.88x = 7,647,436,912.64
5. Step 5: Solve for x
   x = 7,647,436,912.64/58,309.88
6. Step 6: Final answer
   x = 131,151.66