Finding the Third Proportional to 5,499,238 and 8,319,636

Step by Step Solution

1. Step 1: Write the proportion equation
   5,499,238 : 8,319,636 = 8,319,636 : x
2. Step 2: Convert to fraction form
   5,499,238/8,319,636 = 8,319,636/x
3. Step 3: Cross multiply
   5,499,238x = 8,319,636 × 8,319,636
4. Step 4: Simplify right side
   5,499,238x = 69,216,343,172,496
5. Step 5: Solve for x
   x = 69,216,343,172,496/5,499,238
6. Step 6: Final answer
   x = 12,586,533.47