Finding the Third Proportional to 1,403,857 and 2,156,496

Step by Step Solution

1. Step 1: Write the proportion equation
   1,403,857 : 2,156,496 = 2,156,496 : x
2. Step 2: Convert to fraction form
   1,403,857/2,156,496 = 2,156,496/x
3. Step 3: Cross multiply
   1,403,857x = 2,156,496 × 2,156,496
4. Step 4: Simplify right side
   1,403,857x = 4,650,474,998,016
5. Step 5: Solve for x
   x = 4,650,474,998,016/1,403,857
6. Step 6: Final answer
   x = 3,312,641.53