Finding the Third Proportional to 815,864 and 1,175,088

Step by Step Solution

1. Step 1: Write the proportion equation
   815,864 : 1,175,088 = 1,175,088 : x
2. Step 2: Convert to fraction form
   815,864/1,175,088 = 1,175,088/x
3. Step 3: Cross multiply
   815,864x = 1,175,088 × 1,175,088
4. Step 4: Simplify right side
   815,864x = 1,380,831,807,744
5. Step 5: Solve for x
   x = 1,380,831,807,744/815,864
6. Step 6: Final answer
   x = 1,692,477.92