Finding the Third Proportional to 364,390.50 and 800,521.50

Step by Step Solution

1. Step 1: Write the proportion equation
   364,390.50 : 800,521.50 = 800,521.50 : x
2. Step 2: Convert to fraction form
   364,390.50/800,521.50 = 800,521.50/x
3. Step 3: Cross multiply
   364,390.50x = 800,521.50 × 800,521.50
4. Step 4: Simplify right side
   364,390.50x = 640,834,671,962.25
5. Step 5: Solve for x
   x = 640,834,671,962.25/364,390.50
6. Step 6: Final answer
   x = 1,758,648.13