Finding the Third Proportional to 672,136 and 1,064,808

Step by Step Solution

1. Step 1: Write the proportion equation
   672,136 : 1,064,808 = 1,064,808 : x
2. Step 2: Convert to fraction form
   672,136/1,064,808 = 1,064,808/x
3. Step 3: Cross multiply
   672,136x = 1,064,808 × 1,064,808
4. Step 4: Simplify right side
   672,136x = 1,133,816,076,864
5. Step 5: Solve for x
   x = 1,133,816,076,864/672,136
6. Step 6: Final answer
   x = 1,686,884.91