Finding the Third Proportional to 199,492.50 and 299,445

Step by Step Solution

1. Step 1: Write the proportion equation
   199,492.50 : 299,445 = 299,445 : x
2. Step 2: Convert to fraction form
   199,492.50/299,445 = 299,445/x
3. Step 3: Cross multiply
   199,492.50x = 299,445 × 299,445
4. Step 4: Simplify right side
   199,492.50x = 89,667,308,025
5. Step 5: Solve for x
   x = 89,667,308,025/199,492.50
6. Step 6: Final answer
   x = 449,477.09