Finding the Third Proportional to 117,066.50 and 251,905.50

Step by Step Solution

1. Step 1: Write the proportion equation
   117,066.50 : 251,905.50 = 251,905.50 : x
2. Step 2: Convert to fraction form
   117,066.50/251,905.50 = 251,905.50/x
3. Step 3: Cross multiply
   117,066.50x = 251,905.50 × 251,905.50
4. Step 4: Simplify right side
   117,066.50x = 63,456,380,930.25
5. Step 5: Solve for x
   x = 63,456,380,930.25/117,066.50
6. Step 6: Final answer
   x = 542,054.14