Finding the Third Proportional to 143,053.50 and 310,002

Step by Step Solution

1. Step 1: Write the proportion equation
   143,053.50 : 310,002 = 310,002 : x
2. Step 2: Convert to fraction form
   143,053.50/310,002 = 310,002/x
3. Step 3: Cross multiply
   143,053.50x = 310,002 × 310,002
4. Step 4: Simplify right side
   143,053.50x = 96,101,240,004
5. Step 5: Solve for x
   x = 96,101,240,004/143,053.50
6. Step 6: Final answer
   x = 671,785.31