Finding the Third Proportional to 8,000,311.50 and 12,709,055.25

Step by Step Solution

1. Step 1: Write the proportion equation
   8,000,311.50 : 12,709,055.25 = 12,709,055.25 : x
2. Step 2: Convert to fraction form
   8,000,311.50/12,709,055.25 = 12,709,055.25/x
3. Step 3: Cross multiply
   8,000,311.50x = 12,709,055.25 × 12,709,055.25
4. Step 4: Simplify right side
   8,000,311.50x = 161,520,085,347,552.56
5. Step 5: Solve for x
   x = 161,520,085,347,552.56/8,000,311.50
6. Step 6: Final answer
   x = 20,189,224.55