Finding the Third Proportional to 644,156 and 1,402,522

Step by Step Solution

1. Step 1: Write the proportion equation
   644,156 : 1,402,522 = 1,402,522 : x
2. Step 2: Convert to fraction form
   644,156/1,402,522 = 1,402,522/x
3. Step 3: Cross multiply
   644,156x = 1,402,522 × 1,402,522
4. Step 4: Simplify right side
   644,156x = 1,967,067,960,484
5. Step 5: Solve for x
   x = 1,967,067,960,484/644,156
6. Step 6: Final answer
   x = 3,053,713.64