Finding the Third Proportional to 5,685,486 and 12,566,772

Step by Step Solution

1. Step 1: Write the proportion equation
   5,685,486 : 12,566,772 = 12,566,772 : x
2. Step 2: Convert to fraction form
   5,685,486/12,566,772 = 12,566,772/x
3. Step 3: Cross multiply
   5,685,486x = 12,566,772 × 12,566,772
4. Step 4: Simplify right side
   5,685,486x = 157,923,758,499,984
5. Step 5: Solve for x
   x = 157,923,758,499,984/5,685,486
6. Step 6: Final answer
   x = 27,776,650.67