Finding the Third Proportional to 42,547.50 and 60,900.75

Step by Step Solution

1. Step 1: Write the proportion equation
   42,547.50 : 60,900.75 = 60,900.75 : x
2. Step 2: Convert to fraction form
   42,547.50/60,900.75 = 60,900.75/x
3. Step 3: Cross multiply
   42,547.50x = 60,900.75 × 60,900.75
4. Step 4: Simplify right side
   42,547.50x = 3,708,901,350.56
5. Step 5: Solve for x
   x = 3,708,901,350.56/42,547.50
6. Step 6: Final answer
   x = 87,170.84