Finding the Third Proportional to 5,671,872 and 8,488,003

Step by Step Solution

1. Step 1: Write the proportion equation
   5,671,872 : 8,488,003 = 8,488,003 : x
2. Step 2: Convert to fraction form
   5,671,872/8,488,003 = 8,488,003/x
3. Step 3: Cross multiply
   5,671,872x = 8,488,003 × 8,488,003
4. Step 4: Simplify right side
   5,671,872x = 72,046,194,928,009
5. Step 5: Solve for x
   x = 72,046,194,928,009/5,671,872
6. Step 6: Final answer
   x = 12,702,366.15