Finding the Third Proportional to 123,063 and 289,753.50

Step by Step Solution

1. Step 1: Write the proportion equation
   123,063 : 289,753.50 = 289,753.50 : x
2. Step 2: Convert to fraction form
   123,063/289,753.50 = 289,753.50/x
3. Step 3: Cross multiply
   123,063x = 289,753.50 × 289,753.50
4. Step 4: Simplify right side
   123,063x = 83,957,090,762.25
5. Step 5: Solve for x
   x = 83,957,090,762.25/123,063
6. Step 6: Final answer
   x = 682,228.54