Finding the Third Proportional to 112,855 and 242,931

Step by Step Solution

1. Step 1: Write the proportion equation
   112,855 : 242,931 = 242,931 : x
2. Step 2: Convert to fraction form
   112,855/242,931 = 242,931/x
3. Step 3: Cross multiply
   112,855x = 242,931 × 242,931
4. Step 4: Simplify right side
   112,855x = 59,015,470,761
5. Step 5: Solve for x
   x = 59,015,470,761/112,855
6. Step 6: Final answer
   x = 522,931.82