Finding the Third Proportional to 804,588 and 1,588,640

Step by Step Solution

1. Step 1: Write the proportion equation
   804,588 : 1,588,640 = 1,588,640 : x
2. Step 2: Convert to fraction form
   804,588/1,588,640 = 1,588,640/x
3. Step 3: Cross multiply
   804,588x = 1,588,640 × 1,588,640
4. Step 4: Simplify right side
   804,588x = 2,523,777,049,600
5. Step 5: Solve for x
   x = 2,523,777,049,600/804,588
6. Step 6: Final answer
   x = 3,136,732.15