Finding the Third Proportional to 111,726 and 242,212

Step by Step Solution

1. Step 1: Write the proportion equation
   111,726 : 242,212 = 242,212 : x
2. Step 2: Convert to fraction form
   111,726/242,212 = 242,212/x
3. Step 3: Cross multiply
   111,726x = 242,212 × 242,212
4. Step 4: Simplify right side
   111,726x = 58,666,652,944
5. Step 5: Solve for x
   x = 58,666,652,944/111,726
6. Step 6: Final answer
   x = 525,094.01