Finding the Third Proportional to 5,112,910 and 8,139,592

Step by Step Solution

1. Step 1: Write the proportion equation
   5,112,910 : 8,139,592 = 8,139,592 : x
2. Step 2: Convert to fraction form
   5,112,910/8,139,592 = 8,139,592/x
3. Step 3: Cross multiply
   5,112,910x = 8,139,592 × 8,139,592
4. Step 4: Simplify right side
   5,112,910x = 66,252,957,926,464
5. Step 5: Solve for x
   x = 66,252,957,926,464/5,112,910
6. Step 6: Final answer
   x = 12,957,974.60