Finding the Third Proportional to 3,669,493 and 8,290,319

Step by Step Solution

1. Step 1: Write the proportion equation
   3,669,493 : 8,290,319 = 8,290,319 : x
2. Step 2: Convert to fraction form
   3,669,493/8,290,319 = 8,290,319/x
3. Step 3: Cross multiply
   3,669,493x = 8,290,319 × 8,290,319
4. Step 4: Simplify right side
   3,669,493x = 68,729,389,121,761
5. Step 5: Solve for x
   x = 68,729,389,121,761/3,669,493
6. Step 6: Final answer
   x = 18,729,941.47