Finding the Third Proportional to 127,563.50 and 278,091

Step by Step Solution

1. Step 1: Write the proportion equation
   127,563.50 : 278,091 = 278,091 : x
2. Step 2: Convert to fraction form
   127,563.50/278,091 = 278,091/x
3. Step 3: Cross multiply
   127,563.50x = 278,091 × 278,091
4. Step 4: Simplify right side
   127,563.50x = 77,334,604,281
5. Step 5: Solve for x
   x = 77,334,604,281/127,563.50
6. Step 6: Final answer
   x = 606,243.98