Finding the Third Proportional to 708,780 and 1,515,912

Step by Step Solution

1. Step 1: Write the proportion equation
   708,780 : 1,515,912 = 1,515,912 : x
2. Step 2: Convert to fraction form
   708,780/1,515,912 = 1,515,912/x
3. Step 3: Cross multiply
   708,780x = 1,515,912 × 1,515,912
4. Step 4: Simplify right side
   708,780x = 2,297,989,191,744
5. Step 5: Solve for x
   x = 2,297,989,191,744/708,780
6. Step 6: Final answer
   x = 3,242,175.56