Finding the Third Proportional to 111,711 and 240,913.50

Step by Step Solution

1. Step 1: Write the proportion equation
   111,711 : 240,913.50 = 240,913.50 : x
2. Step 2: Convert to fraction form
   111,711/240,913.50 = 240,913.50/x
3. Step 3: Cross multiply
   111,711x = 240,913.50 × 240,913.50
4. Step 4: Simplify right side
   111,711x = 58,039,314,482.25
5. Step 5: Solve for x
   x = 58,039,314,482.25/111,711
6. Step 6: Final answer
   x = 519,548.79