Finding the Third Proportional to 300,611.25 and 661,344

Step by Step Solution

1. Step 1: Write the proportion equation
   300,611.25 : 661,344 = 661,344 : x
2. Step 2: Convert to fraction form
   300,611.25/661,344 = 661,344/x
3. Step 3: Cross multiply
   300,611.25x = 661,344 × 661,344
4. Step 4: Simplify right side
   300,611.25x = 437,375,886,336
5. Step 5: Solve for x
   x = 437,375,886,336/300,611.25
6. Step 6: Final answer
   x = 1,454,955.15