Finding the Third Proportional to 350,910 and 501,814.50

Step by Step Solution

1. Step 1: Write the proportion equation
   350,910 : 501,814.50 = 501,814.50 : x
2. Step 2: Convert to fraction form
   350,910/501,814.50 = 501,814.50/x
3. Step 3: Cross multiply
   350,910x = 501,814.50 × 501,814.50
4. Step 4: Simplify right side
   350,910x = 251,817,792,410.25
5. Step 5: Solve for x
   x = 251,817,792,410.25/350,910
6. Step 6: Final answer
   x = 717,613.61