Finding the Third Proportional to 1,386,726 and 2,130,552

Step by Step Solution

1. Step 1: Write the proportion equation
   1,386,726 : 2,130,552 = 2,130,552 : x
2. Step 2: Convert to fraction form
   1,386,726/2,130,552 = 2,130,552/x
3. Step 3: Cross multiply
   1,386,726x = 2,130,552 × 2,130,552
4. Step 4: Simplify right side
   1,386,726x = 4,539,251,824,704
5. Step 5: Solve for x
   x = 4,539,251,824,704/1,386,726
6. Step 6: Final answer
   x = 3,273,358.85