Finding the Third Proportional to 123,921 and 187,042.50

Step by Step Solution

1. Step 1: Write the proportion equation
   123,921 : 187,042.50 = 187,042.50 : x
2. Step 2: Convert to fraction form
   123,921/187,042.50 = 187,042.50/x
3. Step 3: Cross multiply
   123,921x = 187,042.50 × 187,042.50
4. Step 4: Simplify right side
   123,921x = 34,984,896,806.25
5. Step 5: Solve for x
   x = 34,984,896,806.25/123,921
6. Step 6: Final answer
   x = 282,316.13