Finding the Third Proportional to 3,867,012 and 8,506,233

Step by Step Solution

1. Step 1: Write the proportion equation
   3,867,012 : 8,506,233 = 8,506,233 : x
2. Step 2: Convert to fraction form
   3,867,012/8,506,233 = 8,506,233/x
3. Step 3: Cross multiply
   3,867,012x = 8,506,233 × 8,506,233
4. Step 4: Simplify right side
   3,867,012x = 72,355,999,850,289
5. Step 5: Solve for x
   x = 72,355,999,850,289/3,867,012
6. Step 6: Final answer
   x = 18,711,087.49