Finding the Third Proportional to 112,300 and 242,410

Step by Step Solution

1. Step 1: Write the proportion equation
   112,300 : 242,410 = 242,410 : x
2. Step 2: Convert to fraction form
   112,300/242,410 = 242,410/x
3. Step 3: Cross multiply
   112,300x = 242,410 × 242,410
4. Step 4: Simplify right side
   112,300x = 58,762,608,100
5. Step 5: Solve for x
   x = 58,762,608,100/112,300
6. Step 6: Final answer
   x = 523,264.54