Finding the Third Proportional to 219,802.50 and 445,824

Step by Step Solution

1. Step 1: Write the proportion equation
   219,802.50 : 445,824 = 445,824 : x
2. Step 2: Convert to fraction form
   219,802.50/445,824 = 445,824/x
3. Step 3: Cross multiply
   219,802.50x = 445,824 × 445,824
4. Step 4: Simplify right side
   219,802.50x = 198,759,038,976
5. Step 5: Solve for x
   x = 198,759,038,976/219,802.50
6. Step 6: Final answer
   x = 904,261.96