Finding the Third Proportional to 1,292,290 and 2,649,060

Step by Step Solution

1. Step 1: Write the proportion equation
   1,292,290 : 2,649,060 = 2,649,060 : x
2. Step 2: Convert to fraction form
   1,292,290/2,649,060 = 2,649,060/x
3. Step 3: Cross multiply
   1,292,290x = 2,649,060 × 2,649,060
4. Step 4: Simplify right side
   1,292,290x = 7,017,518,883,600
5. Step 5: Solve for x
   x = 7,017,518,883,600/1,292,290
6. Step 6: Final answer
   x = 5,430,297.29