Finding the Third Proportional to 603,390 and 894,643.50

Step by Step Solution

1. Step 1: Write the proportion equation
   603,390 : 894,643.50 = 894,643.50 : x
2. Step 2: Convert to fraction form
   603,390/894,643.50 = 894,643.50/x
3. Step 3: Cross multiply
   603,390x = 894,643.50 × 894,643.50
4. Step 4: Simplify right side
   603,390x = 800,386,992,092.25
5. Step 5: Solve for x
   x = 800,386,992,092.25/603,390
6. Step 6: Final answer
   x = 1,326,483.69