Finding the Third Proportional to 301,698 and 624,271.50

Step by Step Solution

1. Step 1: Write the proportion equation
   301,698 : 624,271.50 = 624,271.50 : x
2. Step 2: Convert to fraction form
   301,698/624,271.50 = 624,271.50/x
3. Step 3: Cross multiply
   301,698x = 624,271.50 × 624,271.50
4. Step 4: Simplify right side
   301,698x = 389,714,905,712.25
5. Step 5: Solve for x
   x = 389,714,905,712.25/301,698
6. Step 6: Final answer
   x = 1,291,738.45