Finding the Third Proportional to 254,620 and 530,158

Step by Step Solution

1. Step 1: Write the proportion equation
   254,620 : 530,158 = 530,158 : x
2. Step 2: Convert to fraction form
   254,620/530,158 = 530,158/x
3. Step 3: Cross multiply
   254,620x = 530,158 × 530,158
4. Step 4: Simplify right side
   254,620x = 281,067,504,964
5. Step 5: Solve for x
   x = 281,067,504,964/254,620
6. Step 6: Final answer
   x = 1,103,870.49