Finding the Third Proportional to 5,387,552 and 8,364,644

Step by Step Solution

1. Step 1: Write the proportion equation
   5,387,552 : 8,364,644 = 8,364,644 : x
2. Step 2: Convert to fraction form
   5,387,552/8,364,644 = 8,364,644/x
3. Step 3: Cross multiply
   5,387,552x = 8,364,644 × 8,364,644
4. Step 4: Simplify right side
   5,387,552x = 69,967,269,246,736
5. Step 5: Solve for x
   x = 69,967,269,246,736/5,387,552
6. Step 6: Final answer
   x = 12,986,838.78