Finding the Third Proportional to 383,258 and 806,241.50

Step by Step Solution

1. Step 1: Write the proportion equation
   383,258 : 806,241.50 = 806,241.50 : x
2. Step 2: Convert to fraction form
   383,258/806,241.50 = 806,241.50/x
3. Step 3: Cross multiply
   383,258x = 806,241.50 × 806,241.50
4. Step 4: Simplify right side
   383,258x = 650,025,356,322.25
5. Step 5: Solve for x
   x = 650,025,356,322.25/383,258
6. Step 6: Final answer
   x = 1,696,051.63