Finding the Third Proportional to 5,466,472 and 8,486,206

Step by Step Solution

1. Step 1: Write the proportion equation
   5,466,472 : 8,486,206 = 8,486,206 : x
2. Step 2: Convert to fraction form
   5,466,472/8,486,206 = 8,486,206/x
3. Step 3: Cross multiply
   5,466,472x = 8,486,206 × 8,486,206
4. Step 4: Simplify right side
   5,466,472x = 72,015,692,274,436
5. Step 5: Solve for x
   x = 72,015,692,274,436/5,466,472
6. Step 6: Final answer
   x = 13,174,071.37