Finding the Third Proportional to 7,218,468 and 10,156,238

Step by Step Solution

1. Step 1: Write the proportion equation
   7,218,468 : 10,156,238 = 10,156,238 : x
2. Step 2: Convert to fraction form
   7,218,468/10,156,238 = 10,156,238/x
3. Step 3: Cross multiply
   7,218,468x = 10,156,238 × 10,156,238
4. Step 4: Simplify right side
   7,218,468x = 103,149,170,312,644
5. Step 5: Solve for x
   x = 103,149,170,312,644/7,218,468
6. Step 6: Final answer
   x = 14,289,620.78