Finding the Third Proportional to 111,138.50 and 230,053

Step by Step Solution

1. Step 1: Write the proportion equation
   111,138.50 : 230,053 = 230,053 : x
2. Step 2: Convert to fraction form
   111,138.50/230,053 = 230,053/x
3. Step 3: Cross multiply
   111,138.50x = 230,053 × 230,053
4. Step 4: Simplify right side
   111,138.50x = 52,924,382,809
5. Step 5: Solve for x
   x = 52,924,382,809/111,138.50
6. Step 6: Final answer
   x = 476,202.06