Finding the Third Proportional to 90,339 and 194,555.25

Step by Step Solution

1. Step 1: Write the proportion equation
   90,339 : 194,555.25 = 194,555.25 : x
2. Step 2: Convert to fraction form
   90,339/194,555.25 = 194,555.25/x
3. Step 3: Cross multiply
   90,339x = 194,555.25 × 194,555.25
4. Step 4: Simplify right side
   90,339x = 37,851,745,302.56
5. Step 5: Solve for x
   x = 37,851,745,302.56/90,339
6. Step 6: Final answer
   x = 418,996.73