Finding the Third Proportional to 292,504.50 and 427,680

Step by Step Solution

1. Step 1: Write the proportion equation
   292,504.50 : 427,680 = 427,680 : x
2. Step 2: Convert to fraction form
   292,504.50/427,680 = 427,680/x
3. Step 3: Cross multiply
   292,504.50x = 427,680 × 427,680
4. Step 4: Simplify right side
   292,504.50x = 182,910,182,400
5. Step 5: Solve for x
   x = 182,910,182,400/292,504.50
6. Step 6: Final answer
   x = 625,324.34