Finding the Third Proportional to 111,672 and 243,040.50

Step by Step Solution

1. Step 1: Write the proportion equation
   111,672 : 243,040.50 = 243,040.50 : x
2. Step 2: Convert to fraction form
   111,672/243,040.50 = 243,040.50/x
3. Step 3: Cross multiply
   111,672x = 243,040.50 × 243,040.50
4. Step 4: Simplify right side
   111,672x = 59,068,684,640.25
5. Step 5: Solve for x
   x = 59,068,684,640.25/111,672
6. Step 6: Final answer
   x = 528,948.03