Finding the Third Proportional to 413,982 and 843,637.50

Step by Step Solution

1. Step 1: Write the proportion equation
   413,982 : 843,637.50 = 843,637.50 : x
2. Step 2: Convert to fraction form
   413,982/843,637.50 = 843,637.50/x
3. Step 3: Cross multiply
   413,982x = 843,637.50 × 843,637.50
4. Step 4: Simplify right side
   413,982x = 711,724,231,406.25
5. Step 5: Solve for x
   x = 711,724,231,406.25/413,982
6. Step 6: Final answer
   x = 1,719,215.40