Finding the Third Proportional to 223,353 and 349,609.50

Step by Step Solution

1. Step 1: Write the proportion equation
   223,353 : 349,609.50 = 349,609.50 : x
2. Step 2: Convert to fraction form
   223,353/349,609.50 = 349,609.50/x
3. Step 3: Cross multiply
   223,353x = 349,609.50 × 349,609.50
4. Step 4: Simplify right side
   223,353x = 122,226,802,490.25
5. Step 5: Solve for x
   x = 122,226,802,490.25/223,353
6. Step 6: Final answer
   x = 547,236.00