Finding the Third Proportional to 42,188.03 and 61,616.16

Step by Step Solution

1. Step 1: Write the proportion equation
   42,188.03 : 61,616.16 = 61,616.16 : x
2. Step 2: Convert to fraction form
   42,188.03/61,616.16 = 61,616.16/x
3. Step 3: Cross multiply
   42,188.03x = 61,616.16 × 61,616.16
4. Step 4: Simplify right side
   42,188.03x = 3,796,551,433.09
5. Step 5: Solve for x
   x = 3,796,551,433.09/42,188.03
6. Step 6: Final answer
   x = 89,991.21