Finding the Third Proportional to 58,620.50 and 90,732.75

Step by Step Solution

1. Step 1: Write the proportion equation
   58,620.50 : 90,732.75 = 90,732.75 : x
2. Step 2: Convert to fraction form
   58,620.50/90,732.75 = 90,732.75/x
3. Step 3: Cross multiply
   58,620.50x = 90,732.75 × 90,732.75
4. Step 4: Simplify right side
   58,620.50x = 8,232,431,922.56
5. Step 5: Solve for x
   x = 8,232,431,922.56/58,620.50
6. Step 6: Final answer
   x = 140,436.06