Finding the Third Proportional to 308,041.42 and 459,498.76

Step by Step Solution

1. Step 1: Write the proportion equation
   308,041.42 : 459,498.76 = 459,498.76 : x
2. Step 2: Convert to fraction form
   308,041.42/459,498.76 = 459,498.76/x
3. Step 3: Cross multiply
   308,041.42x = 459,498.76 × 459,498.76
4. Step 4: Simplify right side
   308,041.42x = 211,139,112,021.07
5. Step 5: Solve for x
   x = 211,139,112,021.07/308,041.42
6. Step 6: Final answer
   x = 685,424.43