Finding the Third Proportional to 127,544.50 and 278,054

Step by Step Solution

1. Step 1: Write the proportion equation
   127,544.50 : 278,054 = 278,054 : x
2. Step 2: Convert to fraction form
   127,544.50/278,054 = 278,054/x
3. Step 3: Cross multiply
   127,544.50x = 278,054 × 278,054
4. Step 4: Simplify right side
   127,544.50x = 77,314,026,916
5. Step 5: Solve for x
   x = 77,314,026,916/127,544.50
6. Step 6: Final answer
   x = 606,172.96