Finding the Third Proportional to 664,266 and 1,375,776

Step by Step Solution

1. Step 1: Write the proportion equation
   664,266 : 1,375,776 = 1,375,776 : x
2. Step 2: Convert to fraction form
   664,266/1,375,776 = 1,375,776/x
3. Step 3: Cross multiply
   664,266x = 1,375,776 × 1,375,776
4. Step 4: Simplify right side
   664,266x = 1,892,759,602,176
5. Step 5: Solve for x
   x = 1,892,759,602,176/664,266
6. Step 6: Final answer
   x = 2,849,400.09