Finding the Third Proportional to 124,619.77 and 300,446.72

Step by Step Solution

1. Step 1: Write the proportion equation
   124,619.77 : 300,446.72 = 300,446.72 : x
2. Step 2: Convert to fraction form
   124,619.77/300,446.72 = 300,446.72/x
3. Step 3: Cross multiply
   124,619.77x = 300,446.72 × 300,446.72
4. Step 4: Simplify right side
   124,619.77x = 90,268,230,807.64
5. Step 5: Solve for x
   x = 90,268,230,807.64/124,619.77
6. Step 6: Final answer
   x = 724,349.23