Finding the Third Proportional to 153,476.50 and 361,789

Step by Step Solution

1. Step 1: Write the proportion equation
   153,476.50 : 361,789 = 361,789 : x
2. Step 2: Convert to fraction form
   153,476.50/361,789 = 361,789/x
3. Step 3: Cross multiply
   153,476.50x = 361,789 × 361,789
4. Step 4: Simplify right side
   153,476.50x = 130,891,280,521
5. Step 5: Solve for x
   x = 130,891,280,521/153,476.50
6. Step 6: Final answer
   x = 852,842.49