Finding the Third Proportional to 143,391.94 and 315,095.06

Step by Step Solution

1. Step 1: Write the proportion equation
   143,391.94 : 315,095.06 = 315,095.06 : x
2. Step 2: Convert to fraction form
   143,391.94/315,095.06 = 315,095.06/x
3. Step 3: Cross multiply
   143,391.94x = 315,095.06 × 315,095.06
4. Step 4: Simplify right side
   143,391.94x = 99,284,898,411.88
5. Step 5: Solve for x
   x = 99,284,898,411.88/143,391.94
6. Step 6: Final answer
   x = 692,402.24