Finding the Third Proportional to 5,188,275 and 8,288,312

Step by Step Solution

1. Step 1: Write the proportion equation
   5,188,275 : 8,288,312 = 8,288,312 : x
2. Step 2: Convert to fraction form
   5,188,275/8,288,312 = 8,288,312/x
3. Step 3: Cross multiply
   5,188,275x = 8,288,312 × 8,288,312
4. Step 4: Simplify right side
   5,188,275x = 68,696,115,809,344
5. Step 5: Solve for x
   x = 68,696,115,809,344/5,188,275
6. Step 6: Final answer
   x = 13,240,646.61