Finding the Third Proportional to 374,406 and 807,859.50

Step by Step Solution

1. Step 1: Write the proportion equation
   374,406 : 807,859.50 = 807,859.50 : x
2. Step 2: Convert to fraction form
   374,406/807,859.50 = 807,859.50/x
3. Step 3: Cross multiply
   374,406x = 807,859.50 × 807,859.50
4. Step 4: Simplify right side
   374,406x = 652,636,971,740.25
5. Step 5: Solve for x
   x = 652,636,971,740.25/374,406
6. Step 6: Final answer
   x = 1,743,126.37