Finding the Third Proportional to 90,031.50 and 193,873.50

Step by Step Solution

1. Step 1: Write the proportion equation
   90,031.50 : 193,873.50 = 193,873.50 : x
2. Step 2: Convert to fraction form
   90,031.50/193,873.50 = 193,873.50/x
3. Step 3: Cross multiply
   90,031.50x = 193,873.50 × 193,873.50
4. Step 4: Simplify right side
   90,031.50x = 37,586,934,002.25
5. Step 5: Solve for x
   x = 37,586,934,002.25/90,031.50
6. Step 6: Final answer
   x = 417,486.48