Finding the Third Proportional to 986,724 and 2,157,984

Step by Step Solution

1. Step 1: Write the proportion equation
   986,724 : 2,157,984 = 2,157,984 : x
2. Step 2: Convert to fraction form
   986,724/2,157,984 = 2,157,984/x
3. Step 3: Cross multiply
   986,724x = 2,157,984 × 2,157,984
4. Step 4: Simplify right side
   986,724x = 4,656,894,944,256
5. Step 5: Solve for x
   x = 4,656,894,944,256/986,724
6. Step 6: Final answer
   x = 4,719,551.71