Finding the Third Proportional to 986,736 and 2,156,085

Step by Step Solution

1. Step 1: Write the proportion equation
   986,736 : 2,156,085 = 2,156,085 : x
2. Step 2: Convert to fraction form
   986,736/2,156,085 = 2,156,085/x
3. Step 3: Cross multiply
   986,736x = 2,156,085 × 2,156,085
4. Step 4: Simplify right side
   986,736x = 4,648,702,527,225
5. Step 5: Solve for x
   x = 4,648,702,527,225/986,736
6. Step 6: Final answer
   x = 4,711,191.77