Finding the Third Proportional to 1,020,643 and 2,197,287

Step by Step Solution

1. Step 1: Write the proportion equation
   1,020,643 : 2,197,287 = 2,197,287 : x
2. Step 2: Convert to fraction form
   1,020,643/2,197,287 = 2,197,287/x
3. Step 3: Cross multiply
   1,020,643x = 2,197,287 × 2,197,287
4. Step 4: Simplify right side
   1,020,643x = 4,828,070,160,369
5. Step 5: Solve for x
   x = 4,828,070,160,369/1,020,643
6. Step 6: Final answer
   x = 4,730,420.10