Finding the Third Proportional to 3,493,539 and 7,638,774

Step by Step Solution

1. Step 1: Write the proportion equation
   3,493,539 : 7,638,774 = 7,638,774 : x
2. Step 2: Convert to fraction form
   3,493,539/7,638,774 = 7,638,774/x
3. Step 3: Cross multiply
   3,493,539x = 7,638,774 × 7,638,774
4. Step 4: Simplify right side
   3,493,539x = 58,350,868,223,076
5. Step 5: Solve for x
   x = 58,350,868,223,076/3,493,539
6. Step 6: Final answer
   x = 16,702,509.47