Finding the Third Proportional to 409,630.50 and 838,944

Step by Step Solution

1. Step 1: Write the proportion equation
   409,630.50 : 838,944 = 838,944 : x
2. Step 2: Convert to fraction form
   409,630.50/838,944 = 838,944/x
3. Step 3: Cross multiply
   409,630.50x = 838,944 × 838,944
4. Step 4: Simplify right side
   409,630.50x = 703,827,035,136
5. Step 5: Solve for x
   x = 703,827,035,136/409,630.50
6. Step 6: Final answer
   x = 1,718,199.78