Finding the Third Proportional to 3,932,219 and 5,312,678

Step by Step Solution

1. Step 1: Write the proportion equation
   3,932,219 : 5,312,678 = 5,312,678 : x
2. Step 2: Convert to fraction form
   3,932,219/5,312,678 = 5,312,678/x
3. Step 3: Cross multiply
   3,932,219x = 5,312,678 × 5,312,678
4. Step 4: Simplify right side
   3,932,219x = 28,224,547,531,684
5. Step 5: Solve for x
   x = 28,224,547,531,684/3,932,219
6. Step 6: Final answer
   x = 7,177,765.92