Finding the Third Proportional to 3,988,068 and 8,697,927

Step by Step Solution

1. Step 1: Write the proportion equation
   3,988,068 : 8,697,927 = 8,697,927 : x
2. Step 2: Convert to fraction form
   3,988,068/8,697,927 = 8,697,927/x
3. Step 3: Cross multiply
   3,988,068x = 8,697,927 × 8,697,927
4. Step 4: Simplify right side
   3,988,068x = 75,653,934,097,329
5. Step 5: Solve for x
   x = 75,653,934,097,329/3,988,068
6. Step 6: Final answer
   x = 18,970,071.25