Finding the Third Proportional to 104,288 and 141,688

Step by Step Solution

1. Step 1: Write the proportion equation
   104,288 : 141,688 = 141,688 : x
2. Step 2: Convert to fraction form
   104,288/141,688 = 141,688/x
3. Step 3: Cross multiply
   104,288x = 141,688 × 141,688
4. Step 4: Simplify right side
   104,288x = 20,075,489,344
5. Step 5: Solve for x
   x = 20,075,489,344/104,288
6. Step 6: Final answer
   x = 192,500.47