Finding the Third Proportional to 127,840.50 and 278,064

Step by Step Solution

1. Step 1: Write the proportion equation
   127,840.50 : 278,064 = 278,064 : x
2. Step 2: Convert to fraction form
   127,840.50/278,064 = 278,064/x
3. Step 3: Cross multiply
   127,840.50x = 278,064 × 278,064
4. Step 4: Simplify right side
   127,840.50x = 77,319,588,096
5. Step 5: Solve for x
   x = 77,319,588,096/127,840.50
6. Step 6: Final answer
   x = 604,812.94