Finding the Third Proportional to 603,538 and 1,323,140

Step by Step Solution

1. Step 1: Write the proportion equation
   603,538 : 1,323,140 = 1,323,140 : x
2. Step 2: Convert to fraction form
   603,538/1,323,140 = 1,323,140/x
3. Step 3: Cross multiply
   603,538x = 1,323,140 × 1,323,140
4. Step 4: Simplify right side
   603,538x = 1,750,699,459,600
5. Step 5: Solve for x
   x = 1,750,699,459,600/603,538
6. Step 6: Final answer
   x = 2,900,727.81