Finding the Third Proportional to 326,250 and 499,123

Step by Step Solution

1. Step 1: Write the proportion equation
   326,250 : 499,123 = 499,123 : x
2. Step 2: Convert to fraction form
   326,250/499,123 = 499,123/x
3. Step 3: Cross multiply
   326,250x = 499,123 × 499,123
4. Step 4: Simplify right side
   326,250x = 249,123,769,129
5. Step 5: Solve for x
   x = 249,123,769,129/326,250
6. Step 6: Final answer
   x = 763,597.76