Finding the Third Proportional to 42,531.19 and 89,416.13

Step by Step Solution

1. Step 1: Write the proportion equation
   42,531.19 : 89,416.13 = 89,416.13 : x
2. Step 2: Convert to fraction form
   42,531.19/89,416.13 = 89,416.13/x
3. Step 3: Cross multiply
   42,531.19x = 89,416.13 × 89,416.13
4. Step 4: Simplify right side
   42,531.19x = 7,995,243,410.02
5. Step 5: Solve for x
   x = 7,995,243,410.02/42,531.19
6. Step 6: Final answer
   x = 187,985.43