Finding the Third Proportional to 5,403,754 and 8,216,985

Step by Step Solution

1. Step 1: Write the proportion equation
   5,403,754 : 8,216,985 = 8,216,985 : x
2. Step 2: Convert to fraction form
   5,403,754/8,216,985 = 8,216,985/x
3. Step 3: Cross multiply
   5,403,754x = 8,216,985 × 8,216,985
4. Step 4: Simplify right side
   5,403,754x = 67,518,842,490,225
5. Step 5: Solve for x
   x = 67,518,842,490,225/5,403,754
6. Step 6: Final answer
   x = 12,494,803.15