Finding the Third Proportional to 401,422.50 and 591,045

Step by Step Solution

1. Step 1: Write the proportion equation
   401,422.50 : 591,045 = 591,045 : x
2. Step 2: Convert to fraction form
   401,422.50/591,045 = 591,045/x
3. Step 3: Cross multiply
   401,422.50x = 591,045 × 591,045
4. Step 4: Simplify right side
   401,422.50x = 349,334,192,025
5. Step 5: Solve for x
   x = 349,334,192,025/401,422.50
6. Step 6: Final answer
   x = 870,240.69