Finding the Third Proportional to 144,685.88 and 317,385

Step by Step Solution

1. Step 1: Write the proportion equation
   144,685.88 : 317,385 = 317,385 : x
2. Step 2: Convert to fraction form
   144,685.88/317,385 = 317,385/x
3. Step 3: Cross multiply
   144,685.88x = 317,385 × 317,385
4. Step 4: Simplify right side
   144,685.88x = 100,733,238,225
5. Step 5: Solve for x
   x = 100,733,238,225/144,685.88
6. Step 6: Final answer
   x = 696,220.26