Finding the Third Proportional to 144,058.50 and 314,361

Step by Step Solution

1. Step 1: Write the proportion equation
   144,058.50 : 314,361 = 314,361 : x
2. Step 2: Convert to fraction form
   144,058.50/314,361 = 314,361/x
3. Step 3: Cross multiply
   144,058.50x = 314,361 × 314,361
4. Step 4: Simplify right side
   144,058.50x = 98,822,838,321
5. Step 5: Solve for x
   x = 98,822,838,321/144,058.50
6. Step 6: Final answer
   x = 685,991.03