Finding the Third Proportional to 111,283.88 and 262,528.59

Step by Step Solution

1. Step 1: Write the proportion equation
   111,283.88 : 262,528.59 = 262,528.59 : x
2. Step 2: Convert to fraction form
   111,283.88/262,528.59 = 262,528.59/x
3. Step 3: Cross multiply
   111,283.88x = 262,528.59 × 262,528.59
4. Step 4: Simplify right side
   111,283.88x = 68,921,262,536.35
5. Step 5: Solve for x
   x = 68,921,262,536.35/111,283.88
6. Step 6: Final answer
   x = 619,328.38