Finding the Third Proportional to 123,475.50 and 187,878

Step by Step Solution

1. Step 1: Write the proportion equation
   123,475.50 : 187,878 = 187,878 : x
2. Step 2: Convert to fraction form
   123,475.50/187,878 = 187,878/x
3. Step 3: Cross multiply
   123,475.50x = 187,878 × 187,878
4. Step 4: Simplify right side
   123,475.50x = 35,298,142,884
5. Step 5: Solve for x
   x = 35,298,142,884/123,475.50
6. Step 6: Final answer
   x = 285,871.63