Finding the Third Proportional to 113,259.50 and 238,172.50

Step by Step Solution

1. Step 1: Write the proportion equation
   113,259.50 : 238,172.50 = 238,172.50 : x
2. Step 2: Convert to fraction form
   113,259.50/238,172.50 = 238,172.50/x
3. Step 3: Cross multiply
   113,259.50x = 238,172.50 × 238,172.50
4. Step 4: Simplify right side
   113,259.50x = 56,726,139,756.25
5. Step 5: Solve for x
   x = 56,726,139,756.25/113,259.50
6. Step 6: Final answer
   x = 500,851.05