Finding the Third Proportional to 111,816 and 223,539.50

Step by Step Solution

1. Step 1: Write the proportion equation
   111,816 : 223,539.50 = 223,539.50 : x
2. Step 2: Convert to fraction form
   111,816/223,539.50 = 223,539.50/x
3. Step 3: Cross multiply
   111,816x = 223,539.50 × 223,539.50
4. Step 4: Simplify right side
   111,816x = 49,969,908,060.25
5. Step 5: Solve for x
   x = 49,969,908,060.25/111,816
6. Step 6: Final answer
   x = 446,894.08