Finding the Third Proportional to 175,513.50 and 260,688

Step by Step Solution

1. Step 1: Write the proportion equation
   175,513.50 : 260,688 = 260,688 : x
2. Step 2: Convert to fraction form
   175,513.50/260,688 = 260,688/x
3. Step 3: Cross multiply
   175,513.50x = 260,688 × 260,688
4. Step 4: Simplify right side
   175,513.50x = 67,958,233,344
5. Step 5: Solve for x
   x = 67,958,233,344/175,513.50
6. Step 6: Final answer
   x = 387,196.62