Finding the Third Proportional to 58,309.31 and 87,444.56

Step by Step Solution

1. Step 1: Write the proportion equation
   58,309.31 : 87,444.56 = 87,444.56 : x
2. Step 2: Convert to fraction form
   58,309.31/87,444.56 = 87,444.56/x
3. Step 3: Cross multiply
   58,309.31x = 87,444.56 × 87,444.56
4. Step 4: Simplify right side
   58,309.31x = 7,646,551,510.82
5. Step 5: Solve for x
   x = 7,646,551,510.82/58,309.31
6. Step 6: Final answer
   x = 131,137.74