Finding the Third Proportional to 42,640 and 99,596

Step by Step Solution

1. Step 1: Write the proportion equation
   42,640 : 99,596 = 99,596 : x
2. Step 2: Convert to fraction form
   42,640/99,596 = 99,596/x
3. Step 3: Cross multiply
   42,640x = 99,596 × 99,596
4. Step 4: Simplify right side
   42,640x = 9,919,363,216
5. Step 5: Solve for x
   x = 9,919,363,216/42,640
6. Step 6: Final answer
   x = 232,630.47