Finding the Third Proportional to 9,042,520 and 12,648,296

Step by Step Solution

1. Step 1: Write the proportion equation
   9,042,520 : 12,648,296 = 12,648,296 : x
2. Step 2: Convert to fraction form
   9,042,520/12,648,296 = 12,648,296/x
3. Step 3: Cross multiply
   9,042,520x = 12,648,296 × 12,648,296
4. Step 4: Simplify right side
   9,042,520x = 159,979,391,703,616
5. Step 5: Solve for x
   x = 159,979,391,703,616/9,042,520
6. Step 6: Final answer
   x = 17,691,903.55