Finding the Third Proportional to 124,555.50 and 272,490

Step by Step Solution

1. Step 1: Write the proportion equation
   124,555.50 : 272,490 = 272,490 : x
2. Step 2: Convert to fraction form
   124,555.50/272,490 = 272,490/x
3. Step 3: Cross multiply
   124,555.50x = 272,490 × 272,490
4. Step 4: Simplify right side
   124,555.50x = 74,250,800,100
5. Step 5: Solve for x
   x = 74,250,800,100/124,555.50
6. Step 6: Final answer
   x = 596,126.23