Finding the Third Proportional to 587,688 and 872,892

Step by Step Solution

1. Step 1: Write the proportion equation
   587,688 : 872,892 = 872,892 : x
2. Step 2: Convert to fraction form
   587,688/872,892 = 872,892/x
3. Step 3: Cross multiply
   587,688x = 872,892 × 872,892
4. Step 4: Simplify right side
   587,688x = 761,940,443,664
5. Step 5: Solve for x
   x = 761,940,443,664/587,688
6. Step 6: Final answer
   x = 1,296,505.02