Finding the Third Proportional to 5,307,780 and 8,005,656

Step by Step Solution

1. Step 1: Write the proportion equation
   5,307,780 : 8,005,656 = 8,005,656 : x
2. Step 2: Convert to fraction form
   5,307,780/8,005,656 = 8,005,656/x
3. Step 3: Cross multiply
   5,307,780x = 8,005,656 × 8,005,656
4. Step 4: Simplify right side
   5,307,780x = 64,090,527,990,336
5. Step 5: Solve for x
   x = 64,090,527,990,336/5,307,780
6. Step 6: Final answer
   x = 12,074,827.52