Finding the Third Proportional to 15,204,870 and 31,487,630

Step by Step Solution

1. Step 1: Write the proportion equation
   15,204,870 : 31,487,630 = 31,487,630 : x
2. Step 2: Convert to fraction form
   15,204,870/31,487,630 = 31,487,630/x
3. Step 3: Cross multiply
   15,204,870x = 31,487,630 × 31,487,630
4. Step 4: Simplify right side
   15,204,870x = 991,470,843,016,900
5. Step 5: Solve for x
   x = 991,470,843,016,900/15,204,870
6. Step 6: Final answer
   x = 65,207,452.81