Finding the Third Proportional to 38,605,782 and 80,387,116

Step by Step Solution

1. Step 1: Write the proportion equation
   38,605,782 : 80,387,116 = 80,387,116 : x
2. Step 2: Convert to fraction form
   38,605,782/80,387,116 = 80,387,116/x
3. Step 3: Cross multiply
   38,605,782x = 80,387,116 × 80,387,116
4. Step 4: Simplify right side
   38,605,782x = 6,462,088,418,797,456
5. Step 5: Solve for x
   x = 6,462,088,418,797,456/38,605,782
6. Step 6: Final answer
   x = 167,386,543.78