Finding the Third Proportional to 789,660 and 1,154,988

Step by Step Solution

1. Step 1: Write the proportion equation
   789,660 : 1,154,988 = 1,154,988 : x
2. Step 2: Convert to fraction form
   789,660/1,154,988 = 1,154,988/x
3. Step 3: Cross multiply
   789,660x = 1,154,988 × 1,154,988
4. Step 4: Simplify right side
   789,660x = 1,333,997,280,144
5. Step 5: Solve for x
   x = 1,333,997,280,144/789,660
6. Step 6: Final answer
   x = 1,689,331.21