Finding the Third Proportional to 545,623.50 and 825,981.50

Step by Step Solution

1. Step 1: Write the proportion equation
   545,623.50 : 825,981.50 = 825,981.50 : x
2. Step 2: Convert to fraction form
   545,623.50/825,981.50 = 825,981.50/x
3. Step 3: Cross multiply
   545,623.50x = 825,981.50 × 825,981.50
4. Step 4: Simplify right side
   545,623.50x = 682,245,438,342.25
5. Step 5: Solve for x
   x = 682,245,438,342.25/545,623.50
6. Step 6: Final answer
   x = 1,250,395.99