Finding the Third Proportional to 300,388.50 and 609,066

Step by Step Solution

1. Step 1: Write the proportion equation
   300,388.50 : 609,066 = 609,066 : x
2. Step 2: Convert to fraction form
   300,388.50/609,066 = 609,066/x
3. Step 3: Cross multiply
   300,388.50x = 609,066 × 609,066
4. Step 4: Simplify right side
   300,388.50x = 370,961,392,356
5. Step 5: Solve for x
   x = 370,961,392,356/300,388.50
6. Step 6: Final answer
   x = 1,234,938.73