Finding the Third Proportional to 40,605,876 and 87,683,630

Step by Step Solution

1. Step 1: Write the proportion equation
   40,605,876 : 87,683,630 = 87,683,630 : x
2. Step 2: Convert to fraction form
   40,605,876/87,683,630 = 87,683,630/x
3. Step 3: Cross multiply
   40,605,876x = 87,683,630 × 87,683,630
4. Step 4: Simplify right side
   40,605,876x = 7,688,418,969,976,900
5. Step 5: Solve for x
   x = 7,688,418,969,976,900/40,605,876
6. Step 6: Final answer
   x = 189,342,522.00