Finding the Third Proportional to 12,442,839 and 25,878,940

Step by Step Solution

1. Step 1: Write the proportion equation
   12,442,839 : 25,878,940 = 25,878,940 : x
2. Step 2: Convert to fraction form
   12,442,839/25,878,940 = 25,878,940/x
3. Step 3: Cross multiply
   12,442,839x = 25,878,940 × 25,878,940
4. Step 4: Simplify right side
   12,442,839x = 669,719,535,523,600
5. Step 5: Solve for x
   x = 669,719,535,523,600/12,442,839
6. Step 6: Final answer
   x = 53,823,692.13