Finding the Third Proportional to 6,388,418 and 13,932,986

Step by Step Solution

1. Step 1: Write the proportion equation
   6,388,418 : 13,932,986 = 13,932,986 : x
2. Step 2: Convert to fraction form
   6,388,418/13,932,986 = 13,932,986/x
3. Step 3: Cross multiply
   6,388,418x = 13,932,986 × 13,932,986
4. Step 4: Simplify right side
   6,388,418x = 194,128,098,876,196
5. Step 5: Solve for x
   x = 194,128,098,876,196/6,388,418
6. Step 6: Final answer
   x = 30,387,507.34