Finding the Third Proportional to 5,565,344 and 8,391,813

Step by Step Solution

1. Step 1: Write the proportion equation
   5,565,344 : 8,391,813 = 8,391,813 : x
2. Step 2: Convert to fraction form
   5,565,344/8,391,813 = 8,391,813/x
3. Step 3: Cross multiply
   5,565,344x = 8,391,813 × 8,391,813
4. Step 4: Simplify right side
   5,565,344x = 70,422,525,426,969
5. Step 5: Solve for x
   x = 70,422,525,426,969/5,565,344
6. Step 6: Final answer
   x = 12,653,759.66