Finding the Third Proportional to 375,003.50 and 821,239

Step by Step Solution

1. Step 1: Write the proportion equation
   375,003.50 : 821,239 = 821,239 : x
2. Step 2: Convert to fraction form
   375,003.50/821,239 = 821,239/x
3. Step 3: Cross multiply
   375,003.50x = 821,239 × 821,239
4. Step 4: Simplify right side
   375,003.50x = 674,433,495,121
5. Step 5: Solve for x
   x = 674,433,495,121/375,003.50
6. Step 6: Final answer
   x = 1,798,472.53