Finding the Third Proportional to 243,580.50 and 382,638

Step by Step Solution

1. Step 1: Write the proportion equation
   243,580.50 : 382,638 = 382,638 : x
2. Step 2: Convert to fraction form
   243,580.50/382,638 = 382,638/x
3. Step 3: Cross multiply
   243,580.50x = 382,638 × 382,638
4. Step 4: Simplify right side
   243,580.50x = 146,411,839,044
5. Step 5: Solve for x
   x = 146,411,839,044/243,580.50
6. Step 6: Final answer
   x = 601,081.94