Finding the Third Proportional to 5,387,546 and 8,364,633

Step by Step Solution

1. Step 1: Write the proportion equation
   5,387,546 : 8,364,633 = 8,364,633 : x
2. Step 2: Convert to fraction form
   5,387,546/8,364,633 = 8,364,633/x
3. Step 3: Cross multiply
   5,387,546x = 8,364,633 × 8,364,633
4. Step 4: Simplify right side
   5,387,546x = 69,967,085,224,689
5. Step 5: Solve for x
   x = 69,967,085,224,689/5,387,546
6. Step 6: Final answer
   x = 12,986,819.09