Finding the Third Proportional to 58,700 and 123,878

Step by Step Solution

1. Step 1: Write the proportion equation
   58,700 : 123,878 = 123,878 : x
2. Step 2: Convert to fraction form
   58,700/123,878 = 123,878/x
3. Step 3: Cross multiply
   58,700x = 123,878 × 123,878
4. Step 4: Simplify right side
   58,700x = 15,345,758,884
5. Step 5: Solve for x
   x = 15,345,758,884/58,700
6. Step 6: Final answer
   x = 261,426.90