Finding the Third Proportional to 58,620.38 and 90,732.56

Step by Step Solution

1. Step 1: Write the proportion equation
   58,620.38 : 90,732.56 = 90,732.56 : x
2. Step 2: Convert to fraction form
   58,620.38/90,732.56 = 90,732.56/x
3. Step 3: Cross multiply
   58,620.38x = 90,732.56 × 90,732.56
4. Step 4: Simplify right side
   58,620.38x = 8,232,397,897.82
5. Step 5: Solve for x
   x = 8,232,397,897.82/58,620.38
6. Step 6: Final answer
   x = 140,435.78