Finding the Third Proportional to 698,522 and 1,488,628

Step by Step Solution

1. Step 1: Write the proportion equation
   698,522 : 1,488,628 = 1,488,628 : x
2. Step 2: Convert to fraction form
   698,522/1,488,628 = 1,488,628/x
3. Step 3: Cross multiply
   698,522x = 1,488,628 × 1,488,628
4. Step 4: Simplify right side
   698,522x = 2,216,013,322,384
5. Step 5: Solve for x
   x = 2,216,013,322,384/698,522
6. Step 6: Final answer
   x = 3,172,431.68