Finding the Third Proportional to 42,665.72 and 61,458.12

Step by Step Solution

1. Step 1: Write the proportion equation
   42,665.72 : 61,458.12 = 61,458.12 : x
2. Step 2: Convert to fraction form
   42,665.72/61,458.12 = 61,458.12/x
3. Step 3: Cross multiply
   42,665.72x = 61,458.12 × 61,458.12
4. Step 4: Simplify right side
   42,665.72x = 3,777,100,168.23
5. Step 5: Solve for x
   x = 3,777,100,168.23/42,665.72
6. Step 6: Final answer
   x = 88,527.75