Finding the Third Proportional to 12,189,445.63 and 25,387,804.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,189,445.63 : 25,387,804.38 = 25,387,804.38 : x
2. Step 2: Convert to fraction form
   12,189,445.63/25,387,804.38 = 25,387,804.38/x
3. Step 3: Cross multiply
   12,189,445.63x = 25,387,804.38 × 25,387,804.38
4. Step 4: Simplify right side
   12,189,445.63x = 644,540,610,983,269.12
5. Step 5: Solve for x
   x = 644,540,610,983,269.12/12,189,445.63
6. Step 6: Final answer
   x = 52,876,942.14