Finding the Third Proportional to 111,036 and 243,157.50

Step by Step Solution

1. Step 1: Write the proportion equation
   111,036 : 243,157.50 = 243,157.50 : x
2. Step 2: Convert to fraction form
   111,036/243,157.50 = 243,157.50/x
3. Step 3: Cross multiply
   111,036x = 243,157.50 × 243,157.50
4. Step 4: Simplify right side
   111,036x = 59,125,569,806.25
5. Step 5: Solve for x
   x = 59,125,569,806.25/111,036
6. Step 6: Final answer
   x = 532,490.09