Finding the Third Proportional to 111,911.63 and 158,200.31

Step by Step Solution

1. Step 1: Write the proportion equation
   111,911.63 : 158,200.31 = 158,200.31 : x
2. Step 2: Convert to fraction form
   111,911.63/158,200.31 = 158,200.31/x
3. Step 3: Cross multiply
   111,911.63x = 158,200.31 × 158,200.31
4. Step 4: Simplify right side
   111,911.63x = 25,027,338,875.10
5. Step 5: Solve for x
   x = 25,027,338,875.10/111,911.63
6. Step 6: Final answer
   x = 223,634.84