Finding the Third Proportional to 363,894 and 789,637.50

Step by Step Solution

1. Step 1: Write the proportion equation
   363,894 : 789,637.50 = 789,637.50 : x
2. Step 2: Convert to fraction form
   363,894/789,637.50 = 789,637.50/x
3. Step 3: Cross multiply
   363,894x = 789,637.50 × 789,637.50
4. Step 4: Simplify right side
   363,894x = 623,527,381,406.25
5. Step 5: Solve for x
   x = 623,527,381,406.25/363,894
6. Step 6: Final answer
   x = 1,713,486.29