Finding the Third Proportional to 1,485,330 and 2,165,403

Step by Step Solution

1. Step 1: Write the proportion equation
   1,485,330 : 2,165,403 = 2,165,403 : x
2. Step 2: Convert to fraction form
   1,485,330/2,165,403 = 2,165,403/x
3. Step 3: Cross multiply
   1,485,330x = 2,165,403 × 2,165,403
4. Step 4: Simplify right side
   1,485,330x = 4,688,970,152,409
5. Step 5: Solve for x
   x = 4,688,970,152,409/1,485,330
6. Step 6: Final answer
   x = 3,156,854.14