Finding the Third Proportional to 123,912 and 192,140

Step by Step Solution

1. Step 1: Write the proportion equation
   123,912 : 192,140 = 192,140 : x
2. Step 2: Convert to fraction form
   123,912/192,140 = 192,140/x
3. Step 3: Cross multiply
   123,912x = 192,140 × 192,140
4. Step 4: Simplify right side
   123,912x = 36,917,779,600
5. Step 5: Solve for x
   x = 36,917,779,600/123,912
6. Step 6: Final answer
   x = 297,935.47