Finding the Third Proportional to 12,386,664 and 25,644,300

Step by Step Solution

1. Step 1: Write the proportion equation
   12,386,664 : 25,644,300 = 25,644,300 : x
2. Step 2: Convert to fraction form
   12,386,664/25,644,300 = 25,644,300/x
3. Step 3: Cross multiply
   12,386,664x = 25,644,300 × 25,644,300
4. Step 4: Simplify right side
   12,386,664x = 657,630,122,490,000
5. Step 5: Solve for x
   x = 657,630,122,490,000/12,386,664
6. Step 6: Final answer
   x = 53,091,786.66