Finding the Third Proportional to 3,658,354 and 7,878,596

Step by Step Solution

1. Step 1: Write the proportion equation
   3,658,354 : 7,878,596 = 7,878,596 : x
2. Step 2: Convert to fraction form
   3,658,354/7,878,596 = 7,878,596/x
3. Step 3: Cross multiply
   3,658,354x = 7,878,596 × 7,878,596
4. Step 4: Simplify right side
   3,658,354x = 62,072,274,931,216
5. Step 5: Solve for x
   x = 62,072,274,931,216/3,658,354
6. Step 6: Final answer
   x = 16,967,268.59