Finding the Third Proportional to 118,851.50 and 261,028

Step by Step Solution

1. Step 1: Write the proportion equation
   118,851.50 : 261,028 = 261,028 : x
2. Step 2: Convert to fraction form
   118,851.50/261,028 = 261,028/x
3. Step 3: Cross multiply
   118,851.50x = 261,028 × 261,028
4. Step 4: Simplify right side
   118,851.50x = 68,135,616,784
5. Step 5: Solve for x
   x = 68,135,616,784/118,851.50
6. Step 6: Final answer
   x = 573,283.61