Finding the Third Proportional to 15,248,520 and 31,308,780

Step by Step Solution

1. Step 1: Write the proportion equation
   15,248,520 : 31,308,780 = 31,308,780 : x
2. Step 2: Convert to fraction form
   15,248,520/31,308,780 = 31,308,780/x
3. Step 3: Cross multiply
   15,248,520x = 31,308,780 × 31,308,780
4. Step 4: Simplify right side
   15,248,520x = 980,239,705,088,400
5. Step 5: Solve for x
   x = 980,239,705,088,400/15,248,520
6. Step 6: Final answer
   x = 64,284,252.18