Finding the Third Proportional to 1,221,352 and 2,610,426

Step by Step Solution

1. Step 1: Write the proportion equation
   1,221,352 : 2,610,426 = 2,610,426 : x
2. Step 2: Convert to fraction form
   1,221,352/2,610,426 = 2,610,426/x
3. Step 3: Cross multiply
   1,221,352x = 2,610,426 × 2,610,426
4. Step 4: Simplify right side
   1,221,352x = 6,814,323,901,476
5. Step 5: Solve for x
   x = 6,814,323,901,476/1,221,352
6. Step 6: Final answer
   x = 5,579,328.40