Finding the Third Proportional to 5,200,786 and 8,084,440

Step by Step Solution

1. Step 1: Write the proportion equation
   5,200,786 : 8,084,440 = 8,084,440 : x
2. Step 2: Convert to fraction form
   5,200,786/8,084,440 = 8,084,440/x
3. Step 3: Cross multiply
   5,200,786x = 8,084,440 × 8,084,440
4. Step 4: Simplify right side
   5,200,786x = 65,358,170,113,600
5. Step 5: Solve for x
   x = 65,358,170,113,600/5,200,786
6. Step 6: Final answer
   x = 12,566,979.32