Finding the Third Proportional to 8,217,885.50 and 12,824,231.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,217,885.50 : 12,824,231.50 = 12,824,231.50 : x
2. Step 2: Convert to fraction form
   8,217,885.50/12,824,231.50 = 12,824,231.50/x
3. Step 3: Cross multiply
   8,217,885.50x = 12,824,231.50 × 12,824,231.50
4. Step 4: Simplify right side
   8,217,885.50x = 164,460,913,565,592.25
5. Step 5: Solve for x
   x = 164,460,913,565,592.25/8,217,885.50
6. Step 6: Final answer
   x = 20,012,558.41