Finding the Third Proportional to 111,916.50 and 242,758

Step by Step Solution

1. Step 1: Write the proportion equation
   111,916.50 : 242,758 = 242,758 : x
2. Step 2: Convert to fraction form
   111,916.50/242,758 = 242,758/x
3. Step 3: Cross multiply
   111,916.50x = 242,758 × 242,758
4. Step 4: Simplify right side
   111,916.50x = 58,931,446,564
5. Step 5: Solve for x
   x = 58,931,446,564/111,916.50
6. Step 6: Final answer
   x = 526,566.20