Finding the Third Proportional to 236,743 and 318,967.50

Step by Step Solution

1. Step 1: Write the proportion equation
   236,743 : 318,967.50 = 318,967.50 : x
2. Step 2: Convert to fraction form
   236,743/318,967.50 = 318,967.50/x
3. Step 3: Cross multiply
   236,743x = 318,967.50 × 318,967.50
4. Step 4: Simplify right side
   236,743x = 101,740,266,056.25
5. Step 5: Solve for x
   x = 101,740,266,056.25/236,743
6. Step 6: Final answer
   x = 429,749.84