Finding the Third Proportional to 684,667.50 and 1,390,071

Step by Step Solution

1. Step 1: Write the proportion equation
   684,667.50 : 1,390,071 = 1,390,071 : x
2. Step 2: Convert to fraction form
   684,667.50/1,390,071 = 1,390,071/x
3. Step 3: Cross multiply
   684,667.50x = 1,390,071 × 1,390,071
4. Step 4: Simplify right side
   684,667.50x = 1,932,297,385,041
5. Step 5: Solve for x
   x = 1,932,297,385,041/684,667.50
6. Step 6: Final answer
   x = 2,822,242.02