Finding the Third Proportional to 200,281.50 and 428,994

Step by Step Solution

1. Step 1: Write the proportion equation
   200,281.50 : 428,994 = 428,994 : x
2. Step 2: Convert to fraction form
   200,281.50/428,994 = 428,994/x
3. Step 3: Cross multiply
   200,281.50x = 428,994 × 428,994
4. Step 4: Simplify right side
   200,281.50x = 184,035,852,036
5. Step 5: Solve for x
   x = 184,035,852,036/200,281.50
6. Step 6: Final answer
   x = 918,885.93