Finding the Third Proportional to 4,121,286 and 8,851,980

Step by Step Solution

1. Step 1: Write the proportion equation
   4,121,286 : 8,851,980 = 8,851,980 : x
2. Step 2: Convert to fraction form
   4,121,286/8,851,980 = 8,851,980/x
3. Step 3: Cross multiply
   4,121,286x = 8,851,980 × 8,851,980
4. Step 4: Simplify right side
   4,121,286x = 78,357,549,920,400
5. Step 5: Solve for x
   x = 78,357,549,920,400/4,121,286
6. Step 6: Final answer
   x = 19,012,888.19