Finding the Third Proportional to 285,772.50 and 622,341

Step by Step Solution

1. Step 1: Write the proportion equation
   285,772.50 : 622,341 = 622,341 : x
2. Step 2: Convert to fraction form
   285,772.50/622,341 = 622,341/x
3. Step 3: Cross multiply
   285,772.50x = 622,341 × 622,341
4. Step 4: Simplify right side
   285,772.50x = 387,308,320,281
5. Step 5: Solve for x
   x = 387,308,320,281/285,772.50
6. Step 6: Final answer
   x = 1,355,302.98