Finding the Third Proportional to 138,055.50 and 281,916

Step by Step Solution

1. Step 1: Write the proportion equation
   138,055.50 : 281,916 = 281,916 : x
2. Step 2: Convert to fraction form
   138,055.50/281,916 = 281,916/x
3. Step 3: Cross multiply
   138,055.50x = 281,916 × 281,916
4. Step 4: Simplify right side
   138,055.50x = 79,476,631,056
5. Step 5: Solve for x
   x = 79,476,631,056/138,055.50
6. Step 6: Final answer
   x = 575,686.09