Finding the Third Proportional to 351,566.50 and 728,056

Step by Step Solution

1. Step 1: Write the proportion equation
   351,566.50 : 728,056 = 728,056 : x
2. Step 2: Convert to fraction form
   351,566.50/728,056 = 728,056/x
3. Step 3: Cross multiply
   351,566.50x = 728,056 × 728,056
4. Step 4: Simplify right side
   351,566.50x = 530,065,539,136
5. Step 5: Solve for x
   x = 530,065,539,136/351,566.50
6. Step 6: Final answer
   x = 1,507,724.82