Finding the Third Proportional to 3,686,216 and 5,721,228

Step by Step Solution

1. Step 1: Write the proportion equation
   3,686,216 : 5,721,228 = 5,721,228 : x
2. Step 2: Convert to fraction form
   3,686,216/5,721,228 = 5,721,228/x
3. Step 3: Cross multiply
   3,686,216x = 5,721,228 × 5,721,228
4. Step 4: Simplify right side
   3,686,216x = 32,732,449,827,984
5. Step 5: Solve for x
   x = 32,732,449,827,984/3,686,216
6. Step 6: Final answer
   x = 8,879,688.50