Finding the Third Proportional to 445,522.50 and 731,389.50

Step by Step Solution

1. Step 1: Write the proportion equation
   445,522.50 : 731,389.50 = 731,389.50 : x
2. Step 2: Convert to fraction form
   445,522.50/731,389.50 = 731,389.50/x
3. Step 3: Cross multiply
   445,522.50x = 731,389.50 × 731,389.50
4. Step 4: Simplify right side
   445,522.50x = 534,930,600,710.25
5. Step 5: Solve for x
   x = 534,930,600,710.25/445,522.50
6. Step 6: Final answer
   x = 1,200,681.45