Finding the Third Proportional to 230,817 and 349,315.50

Step by Step Solution

1. Step 1: Write the proportion equation
   230,817 : 349,315.50 = 349,315.50 : x
2. Step 2: Convert to fraction form
   230,817/349,315.50 = 349,315.50/x
3. Step 3: Cross multiply
   230,817x = 349,315.50 × 349,315.50
4. Step 4: Simplify right side
   230,817x = 122,021,318,540.25
5. Step 5: Solve for x
   x = 122,021,318,540.25/230,817
6. Step 6: Final answer
   x = 528,649.62