Finding the Third Proportional to 12,442,820 and 25,878,900

Step by Step Solution

1. Step 1: Write the proportion equation
   12,442,820 : 25,878,900 = 25,878,900 : x
2. Step 2: Convert to fraction form
   12,442,820/25,878,900 = 25,878,900/x
3. Step 3: Cross multiply
   12,442,820x = 25,878,900 × 25,878,900
4. Step 4: Simplify right side
   12,442,820x = 669,717,465,210,000
5. Step 5: Solve for x
   x = 669,717,465,210,000/12,442,820
6. Step 6: Final answer
   x = 53,823,607.93