Finding the Third Proportional to 842,356 and 1,988,516

Step by Step Solution

1. Step 1: Write the proportion equation
   842,356 : 1,988,516 = 1,988,516 : x
2. Step 2: Convert to fraction form
   842,356/1,988,516 = 1,988,516/x
3. Step 3: Cross multiply
   842,356x = 1,988,516 × 1,988,516
4. Step 4: Simplify right side
   842,356x = 3,954,195,882,256
5. Step 5: Solve for x
   x = 3,954,195,882,256/842,356
6. Step 6: Final answer
   x = 4,694,209.91