Finding the Third Proportional to 8,423,888 and 12,940,008

Step by Step Solution

1. Step 1: Write the proportion equation
   8,423,888 : 12,940,008 = 12,940,008 : x
2. Step 2: Convert to fraction form
   8,423,888/12,940,008 = 12,940,008/x
3. Step 3: Cross multiply
   8,423,888x = 12,940,008 × 12,940,008
4. Step 4: Simplify right side
   8,423,888x = 167,443,807,040,064
5. Step 5: Solve for x
   x = 167,443,807,040,064/8,423,888
6. Step 6: Final answer
   x = 19,877,259.41