Finding the Third Proportional to 264,424.50 and 385,560

Step by Step Solution

1. Step 1: Write the proportion equation
   264,424.50 : 385,560 = 385,560 : x
2. Step 2: Convert to fraction form
   264,424.50/385,560 = 385,560/x
3. Step 3: Cross multiply
   264,424.50x = 385,560 × 385,560
4. Step 4: Simplify right side
   264,424.50x = 148,656,513,600
5. Step 5: Solve for x
   x = 148,656,513,600/264,424.50
6. Step 6: Final answer
   x = 562,188.88