Finding the Third Proportional to 111,703.50 and 243,063

Step by Step Solution

1. Step 1: Write the proportion equation
   111,703.50 : 243,063 = 243,063 : x
2. Step 2: Convert to fraction form
   111,703.50/243,063 = 243,063/x
3. Step 3: Cross multiply
   111,703.50x = 243,063 × 243,063
4. Step 4: Simplify right side
   111,703.50x = 59,079,621,969
5. Step 5: Solve for x
   x = 59,079,621,969/111,703.50
6. Step 6: Final answer
   x = 528,896.78