Finding the Third Proportional to 99,503 and 154,074

Step by Step Solution

1. Step 1: Write the proportion equation
   99,503 : 154,074 = 154,074 : x
2. Step 2: Convert to fraction form
   99,503/154,074 = 154,074/x
3. Step 3: Cross multiply
   99,503x = 154,074 × 154,074
4. Step 4: Simplify right side
   99,503x = 23,738,797,476
5. Step 5: Solve for x
   x = 23,738,797,476/99,503
6. Step 6: Final answer
   x = 238,573.69