Finding the Third Proportional to 847,028 and 1,272,422

Step by Step Solution

1. Step 1: Write the proportion equation
   847,028 : 1,272,422 = 1,272,422 : x
2. Step 2: Convert to fraction form
   847,028/1,272,422 = 1,272,422/x
3. Step 3: Cross multiply
   847,028x = 1,272,422 × 1,272,422
4. Step 4: Simplify right side
   847,028x = 1,619,057,746,084
5. Step 5: Solve for x
   x = 1,619,057,746,084/847,028
6. Step 6: Final answer
   x = 1,911,457.17