Finding the Third Proportional to 373,666.50 and 817,470

Step by Step Solution

1. Step 1: Write the proportion equation
   373,666.50 : 817,470 = 817,470 : x
2. Step 2: Convert to fraction form
   373,666.50/817,470 = 817,470/x
3. Step 3: Cross multiply
   373,666.50x = 817,470 × 817,470
4. Step 4: Simplify right side
   373,666.50x = 668,257,200,900
5. Step 5: Solve for x
   x = 668,257,200,900/373,666.50
6. Step 6: Final answer
   x = 1,788,378.68