Finding the Third Proportional to 305,211.50 and 662,964

Step by Step Solution

1. Step 1: Write the proportion equation
   305,211.50 : 662,964 = 662,964 : x
2. Step 2: Convert to fraction form
   305,211.50/662,964 = 662,964/x
3. Step 3: Cross multiply
   305,211.50x = 662,964 × 662,964
4. Step 4: Simplify right side
   305,211.50x = 439,521,265,296
5. Step 5: Solve for x
   x = 439,521,265,296/305,211.50
6. Step 6: Final answer
   x = 1,440,054.73