Finding the Third Proportional to 5,387,788 and 8,365,026

Step by Step Solution

1. Step 1: Write the proportion equation
   5,387,788 : 8,365,026 = 8,365,026 : x
2. Step 2: Convert to fraction form
   5,387,788/8,365,026 = 8,365,026/x
3. Step 3: Cross multiply
   5,387,788x = 8,365,026 × 8,365,026
4. Step 4: Simplify right side
   5,387,788x = 69,973,659,980,676
5. Step 5: Solve for x
   x = 69,973,659,980,676/5,387,788
6. Step 6: Final answer
   x = 12,987,456.07