Finding the Third Proportional to 413,181 and 637,996.50

Step by Step Solution

1. Step 1: Write the proportion equation
   413,181 : 637,996.50 = 637,996.50 : x
2. Step 2: Convert to fraction form
   413,181/637,996.50 = 637,996.50/x
3. Step 3: Cross multiply
   413,181x = 637,996.50 × 637,996.50
4. Step 4: Simplify right side
   413,181x = 407,039,534,012.25
5. Step 5: Solve for x
   x = 407,039,534,012.25/413,181
6. Step 6: Final answer
   x = 985,136.14