Finding the Third Proportional to 413,467.50 and 622,611

Step by Step Solution

1. Step 1: Write the proportion equation
   413,467.50 : 622,611 = 622,611 : x
2. Step 2: Convert to fraction form
   413,467.50/622,611 = 622,611/x
3. Step 3: Cross multiply
   413,467.50x = 622,611 × 622,611
4. Step 4: Simplify right side
   413,467.50x = 387,644,457,321
5. Step 5: Solve for x
   x = 387,644,457,321/413,467.50
6. Step 6: Final answer
   x = 937,545.17