Finding the Third Proportional to 318,885.50 and 493,732

Step by Step Solution

1. Step 1: Write the proportion equation
   318,885.50 : 493,732 = 493,732 : x
2. Step 2: Convert to fraction form
   318,885.50/493,732 = 493,732/x
3. Step 3: Cross multiply
   318,885.50x = 493,732 × 493,732
4. Step 4: Simplify right side
   318,885.50x = 243,771,287,824
5. Step 5: Solve for x
   x = 243,771,287,824/318,885.50
6. Step 6: Final answer
   x = 764,447.70