Finding the Third Proportional to 5,320,212 and 8,254,778

Step by Step Solution

1. Step 1: Write the proportion equation
   5,320,212 : 8,254,778 = 8,254,778 : x
2. Step 2: Convert to fraction form
   5,320,212/8,254,778 = 8,254,778/x
3. Step 3: Cross multiply
   5,320,212x = 8,254,778 × 8,254,778
4. Step 4: Simplify right side
   5,320,212x = 68,141,359,829,284
5. Step 5: Solve for x
   x = 68,141,359,829,284/5,320,212
6. Step 6: Final answer
   x = 12,808,015.89