Finding the Third Proportional to 5,161,954 and 7,988,964

Step by Step Solution

1. Step 1: Write the proportion equation
   5,161,954 : 7,988,964 = 7,988,964 : x
2. Step 2: Convert to fraction form
   5,161,954/7,988,964 = 7,988,964/x
3. Step 3: Cross multiply
   5,161,954x = 7,988,964 × 7,988,964
4. Step 4: Simplify right side
   5,161,954x = 63,823,545,793,296
5. Step 5: Solve for x
   x = 63,823,545,793,296/5,161,954
6. Step 6: Final answer
   x = 12,364,222.11