Finding the Third Proportional to 194,238 and 423,780

Step by Step Solution

1. Step 1: Write the proportion equation
   194,238 : 423,780 = 423,780 : x
2. Step 2: Convert to fraction form
   194,238/423,780 = 423,780/x
3. Step 3: Cross multiply
   194,238x = 423,780 × 423,780
4. Step 4: Simplify right side
   194,238x = 179,589,488,400
5. Step 5: Solve for x
   x = 179,589,488,400/194,238
6. Step 6: Final answer
   x = 924,584.73