Finding the Third Proportional to 8,563,644 and 12,372,976

Step by Step Solution

1. Step 1: Write the proportion equation
   8,563,644 : 12,372,976 = 12,372,976 : x
2. Step 2: Convert to fraction form
   8,563,644/12,372,976 = 12,372,976/x
3. Step 3: Cross multiply
   8,563,644x = 12,372,976 × 12,372,976
4. Step 4: Simplify right side
   8,563,644x = 153,090,535,096,576
5. Step 5: Solve for x
   x = 153,090,535,096,576/8,563,644
6. Step 6: Final answer
   x = 17,876,798.14