Finding the Third Proportional to 358,390.50 and 769,902

Step by Step Solution

1. Step 1: Write the proportion equation
   358,390.50 : 769,902 = 769,902 : x
2. Step 2: Convert to fraction form
   358,390.50/769,902 = 769,902/x
3. Step 3: Cross multiply
   358,390.50x = 769,902 × 769,902
4. Step 4: Simplify right side
   358,390.50x = 592,749,089,604
5. Step 5: Solve for x
   x = 592,749,089,604/358,390.50
6. Step 6: Final answer
   x = 1,653,919.65