Finding the Third Proportional to 81,867,645 and 179,117,676

Step by Step Solution

1. Step 1: Write the proportion equation
   81,867,645 : 179,117,676 = 179,117,676 : x
2. Step 2: Convert to fraction form
   81,867,645/179,117,676 = 179,117,676/x
3. Step 3: Cross multiply
   81,867,645x = 179,117,676 × 179,117,676
4. Step 4: Simplify right side
   81,867,645x = 32,083,141,855,640,976
5. Step 5: Solve for x
   x = 32,083,141,855,640,976/81,867,645
6. Step 6: Final answer
   x = 391,890,372.02