Finding the Third Proportional to 112,385 and 240,711.50

Step by Step Solution

1. Step 1: Write the proportion equation
   112,385 : 240,711.50 = 240,711.50 : x
2. Step 2: Convert to fraction form
   112,385/240,711.50 = 240,711.50/x
3. Step 3: Cross multiply
   112,385x = 240,711.50 × 240,711.50
4. Step 4: Simplify right side
   112,385x = 57,942,026,232.25
5. Step 5: Solve for x
   x = 57,942,026,232.25/112,385
6. Step 6: Final answer
   x = 515,567.26