Finding the Third Proportional to 13,288,320 and 20,499,126

Step by Step Solution

1. Step 1: Write the proportion equation
   13,288,320 : 20,499,126 = 20,499,126 : x
2. Step 2: Convert to fraction form
   13,288,320/20,499,126 = 20,499,126/x
3. Step 3: Cross multiply
   13,288,320x = 20,499,126 × 20,499,126
4. Step 4: Simplify right side
   13,288,320x = 420,214,166,763,876
5. Step 5: Solve for x
   x = 420,214,166,763,876/13,288,320
6. Step 6: Final answer
   x = 31,622,821.15