Finding the Third Proportional to 245,269 and 347,815.50

Step by Step Solution

1. Step 1: Write the proportion equation
   245,269 : 347,815.50 = 347,815.50 : x
2. Step 2: Convert to fraction form
   245,269/347,815.50 = 347,815.50/x
3. Step 3: Cross multiply
   245,269x = 347,815.50 × 347,815.50
4. Step 4: Simplify right side
   245,269x = 120,975,622,040.25
5. Step 5: Solve for x
   x = 120,975,622,040.25/245,269
6. Step 6: Final answer
   x = 493,236.50