Finding the Third Proportional to 1,031,280 and 2,220,536

Step by Step Solution

1. Step 1: Write the proportion equation
   1,031,280 : 2,220,536 = 2,220,536 : x
2. Step 2: Convert to fraction form
   1,031,280/2,220,536 = 2,220,536/x
3. Step 3: Cross multiply
   1,031,280x = 2,220,536 × 2,220,536
4. Step 4: Simplify right side
   1,031,280x = 4,930,780,127,296
5. Step 5: Solve for x
   x = 4,930,780,127,296/1,031,280
6. Step 6: Final answer
   x = 4,781,223.46