Finding the Third Proportional to 111,126 and 262,213.88

Step by Step Solution

1. Step 1: Write the proportion equation
   111,126 : 262,213.88 = 262,213.88 : x
2. Step 2: Convert to fraction form
   111,126/262,213.88 = 262,213.88/x
3. Step 3: Cross multiply
   111,126x = 262,213.88 × 262,213.88
4. Step 4: Simplify right side
   111,126x = 68,756,116,242.52
5. Step 5: Solve for x
   x = 68,756,116,242.52/111,126
6. Step 6: Final answer
   x = 618,722.14