Finding the Third Proportional to 51,813 and 80,008.50

Step by Step Solution

1. Step 1: Write the proportion equation
   51,813 : 80,008.50 = 80,008.50 : x
2. Step 2: Convert to fraction form
   51,813/80,008.50 = 80,008.50/x
3. Step 3: Cross multiply
   51,813x = 80,008.50 × 80,008.50
4. Step 4: Simplify right side
   51,813x = 6,401,360,072.25
5. Step 5: Solve for x
   x = 6,401,360,072.25/51,813
6. Step 6: Final answer
   x = 123,547.37