Finding the Third Proportional to 1,356,623 and 2,159,472

Step by Step Solution

1. Step 1: Write the proportion equation
   1,356,623 : 2,159,472 = 2,159,472 : x
2. Step 2: Convert to fraction form
   1,356,623/2,159,472 = 2,159,472/x
3. Step 3: Cross multiply
   1,356,623x = 2,159,472 × 2,159,472
4. Step 4: Simplify right side
   1,356,623x = 4,663,319,318,784
5. Step 5: Solve for x
   x = 4,663,319,318,784/1,356,623
6. Step 6: Final answer
   x = 3,437,446.75