Finding the Third Proportional to 12,178,878 and 25,365,308

Step by Step Solution

1. Step 1: Write the proportion equation
   12,178,878 : 25,365,308 = 25,365,308 : x
2. Step 2: Convert to fraction form
   12,178,878/25,365,308 = 25,365,308/x
3. Step 3: Cross multiply
   12,178,878x = 25,365,308 × 25,365,308
4. Step 4: Simplify right side
   12,178,878x = 643,398,849,934,864
5. Step 5: Solve for x
   x = 643,398,849,934,864/12,178,878
6. Step 6: Final answer
   x = 52,829,074.23