Finding the Third Proportional to 7,139,417 and 10,876,520

Step by Step Solution

1. Step 1: Write the proportion equation
   7,139,417 : 10,876,520 = 10,876,520 : x
2. Step 2: Convert to fraction form
   7,139,417/10,876,520 = 10,876,520/x
3. Step 3: Cross multiply
   7,139,417x = 10,876,520 × 10,876,520
4. Step 4: Simplify right side
   7,139,417x = 118,298,687,310,400
5. Step 5: Solve for x
   x = 118,298,687,310,400/7,139,417
6. Step 6: Final answer
   x = 16,569,796.57