Finding the Third Proportional to 1,292,343 and 2,819,688

Step by Step Solution

1. Step 1: Write the proportion equation
   1,292,343 : 2,819,688 = 2,819,688 : x
2. Step 2: Convert to fraction form
   1,292,343/2,819,688 = 2,819,688/x
3. Step 3: Cross multiply
   1,292,343x = 2,819,688 × 2,819,688
4. Step 4: Simplify right side
   1,292,343x = 7,950,640,417,344
5. Step 5: Solve for x
   x = 7,950,640,417,344/1,292,343
6. Step 6: Final answer
   x = 6,152,113.19