Finding the Third Proportional to 577,728 and 845,194.50

Step by Step Solution

1. Step 1: Write the proportion equation
   577,728 : 845,194.50 = 845,194.50 : x
2. Step 2: Convert to fraction form
   577,728/845,194.50 = 845,194.50/x
3. Step 3: Cross multiply
   577,728x = 845,194.50 × 845,194.50
4. Step 4: Simplify right side
   577,728x = 714,353,742,830.25
5. Step 5: Solve for x
   x = 714,353,742,830.25/577,728
6. Step 6: Final answer
   x = 1,236,488.01