Finding the Third Proportional to 111,150 and 242,710

Step by Step Solution

1. Step 1: Write the proportion equation
   111,150 : 242,710 = 242,710 : x
2. Step 2: Convert to fraction form
   111,150/242,710 = 242,710/x
3. Step 3: Cross multiply
   111,150x = 242,710 × 242,710
4. Step 4: Simplify right side
   111,150x = 58,908,144,100
5. Step 5: Solve for x
   x = 58,908,144,100/111,150
6. Step 6: Final answer
   x = 529,987.80