Finding the Third Proportional to 113,142 and 234,109.50

Step by Step Solution

1. Step 1: Write the proportion equation
   113,142 : 234,109.50 = 234,109.50 : x
2. Step 2: Convert to fraction form
   113,142/234,109.50 = 234,109.50/x
3. Step 3: Cross multiply
   113,142x = 234,109.50 × 234,109.50
4. Step 4: Simplify right side
   113,142x = 54,807,257,990.25
5. Step 5: Solve for x
   x = 54,807,257,990.25/113,142
6. Step 6: Final answer
   x = 484,411.25