Finding the Third Proportional to 207,802.50 and 454,485

Step by Step Solution

1. Step 1: Write the proportion equation
   207,802.50 : 454,485 = 454,485 : x
2. Step 2: Convert to fraction form
   207,802.50/454,485 = 454,485/x
3. Step 3: Cross multiply
   207,802.50x = 454,485 × 454,485
4. Step 4: Simplify right side
   207,802.50x = 206,556,615,225
5. Step 5: Solve for x
   x = 206,556,615,225/207,802.50
6. Step 6: Final answer
   x = 994,004.48