Finding the Third Proportional to 42,327.56 and 90,487.13

Step by Step Solution

1. Step 1: Write the proportion equation
   42,327.56 : 90,487.13 = 90,487.13 : x
2. Step 2: Convert to fraction form
   42,327.56/90,487.13 = 90,487.13/x
3. Step 3: Cross multiply
   42,327.56x = 90,487.13 × 90,487.13
4. Step 4: Simplify right side
   42,327.56x = 8,187,919,790.77
5. Step 5: Solve for x
   x = 8,187,919,790.77/42,327.56
6. Step 6: Final answer
   x = 193,441.80