Finding the Third Proportional to 611,160 and 917,892

Step by Step Solution

1. Step 1: Write the proportion equation
   611,160 : 917,892 = 917,892 : x
2. Step 2: Convert to fraction form
   611,160/917,892 = 917,892/x
3. Step 3: Cross multiply
   611,160x = 917,892 × 917,892
4. Step 4: Simplify right side
   611,160x = 842,525,723,664
5. Step 5: Solve for x
   x = 842,525,723,664/611,160
6. Step 6: Final answer
   x = 1,378,568.17