Finding the Third Proportional to 143,832 and 312,760.50

Step by Step Solution

1. Step 1: Write the proportion equation
   143,832 : 312,760.50 = 312,760.50 : x
2. Step 2: Convert to fraction form
   143,832/312,760.50 = 312,760.50/x
3. Step 3: Cross multiply
   143,832x = 312,760.50 × 312,760.50
4. Step 4: Simplify right side
   143,832x = 97,819,130,360.25
5. Step 5: Solve for x
   x = 97,819,130,360.25/143,832
6. Step 6: Final answer
   x = 680,092.96