Finding the Third Proportional to 42,339.30 and 61,919.16

Step by Step Solution

1. Step 1: Write the proportion equation
   42,339.30 : 61,919.16 = 61,919.16 : x
2. Step 2: Convert to fraction form
   42,339.30/61,919.16 = 61,919.16/x
3. Step 3: Cross multiply
   42,339.30x = 61,919.16 × 61,919.16
4. Step 4: Simplify right side
   42,339.30x = 3,833,981,910.71
5. Step 5: Solve for x
   x = 3,833,981,910.71/42,339.30
6. Step 6: Final answer
   x = 90,553.73