Finding the Third Proportional to 669,605 and 1,445,061

Step by Step Solution

1. Step 1: Write the proportion equation
   669,605 : 1,445,061 = 1,445,061 : x
2. Step 2: Convert to fraction form
   669,605/1,445,061 = 1,445,061/x
3. Step 3: Cross multiply
   669,605x = 1,445,061 × 1,445,061
4. Step 4: Simplify right side
   669,605x = 2,088,201,293,721
5. Step 5: Solve for x
   x = 2,088,201,293,721/669,605
6. Step 6: Final answer
   x = 3,118,556.90