Finding the Third Proportional to 2,639,693 and 4,117,292

Step by Step Solution

1. Step 1: Write the proportion equation
   2,639,693 : 4,117,292 = 4,117,292 : x
2. Step 2: Convert to fraction form
   2,639,693/4,117,292 = 4,117,292/x
3. Step 3: Cross multiply
   2,639,693x = 4,117,292 × 4,117,292
4. Step 4: Simplify right side
   2,639,693x = 16,952,093,413,264
5. Step 5: Solve for x
   x = 16,952,093,413,264/2,639,693
6. Step 6: Final answer
   x = 6,421,994.31