Finding the Third Proportional to 351,567 and 728,056.50

Step by Step Solution

1. Step 1: Write the proportion equation
   351,567 : 728,056.50 = 728,056.50 : x
2. Step 2: Convert to fraction form
   351,567/728,056.50 = 728,056.50/x
3. Step 3: Cross multiply
   351,567x = 728,056.50 × 728,056.50
4. Step 4: Simplify right side
   351,567x = 530,066,267,192.25
5. Step 5: Solve for x
   x = 530,066,267,192.25/351,567
6. Step 6: Final answer
   x = 1,507,724.75