Finding the Third Proportional to 653,446 and 1,386,200

Step by Step Solution

1. Step 1: Write the proportion equation
   653,446 : 1,386,200 = 1,386,200 : x
2. Step 2: Convert to fraction form
   653,446/1,386,200 = 1,386,200/x
3. Step 3: Cross multiply
   653,446x = 1,386,200 × 1,386,200
4. Step 4: Simplify right side
   653,446x = 1,921,550,440,000
5. Step 5: Solve for x
   x = 1,921,550,440,000/653,446
6. Step 6: Final answer
   x = 2,940,641.52