Finding the Third Proportional to 374,842.50 and 816,240

Step by Step Solution

1. Step 1: Write the proportion equation
   374,842.50 : 816,240 = 816,240 : x
2. Step 2: Convert to fraction form
   374,842.50/816,240 = 816,240/x
3. Step 3: Cross multiply
   374,842.50x = 816,240 × 816,240
4. Step 4: Simplify right side
   374,842.50x = 666,247,737,600
5. Step 5: Solve for x
   x = 666,247,737,600/374,842.50
6. Step 6: Final answer
   x = 1,777,407.14