Finding the Third Proportional to 986,916 and 2,123,520

Step by Step Solution

1. Step 1: Write the proportion equation
   986,916 : 2,123,520 = 2,123,520 : x
2. Step 2: Convert to fraction form
   986,916/2,123,520 = 2,123,520/x
3. Step 3: Cross multiply
   986,916x = 2,123,520 × 2,123,520
4. Step 4: Simplify right side
   986,916x = 4,509,337,190,400
5. Step 5: Solve for x
   x = 4,509,337,190,400/986,916
6. Step 6: Final answer
   x = 4,569,119.55