Finding the Third Proportional to 378,770.50 and 810,074

Step by Step Solution

1. Step 1: Write the proportion equation
   378,770.50 : 810,074 = 810,074 : x
2. Step 2: Convert to fraction form
   378,770.50/810,074 = 810,074/x
3. Step 3: Cross multiply
   378,770.50x = 810,074 × 810,074
4. Step 4: Simplify right side
   378,770.50x = 656,219,885,476
5. Step 5: Solve for x
   x = 656,219,885,476/378,770.50
6. Step 6: Final answer
   x = 1,732,499.98