Finding the Third Proportional to 703,458 and 1,089,936

Step by Step Solution

1. Step 1: Write the proportion equation
   703,458 : 1,089,936 = 1,089,936 : x
2. Step 2: Convert to fraction form
   703,458/1,089,936 = 1,089,936/x
3. Step 3: Cross multiply
   703,458x = 1,089,936 × 1,089,936
4. Step 4: Simplify right side
   703,458x = 1,187,960,484,096
5. Step 5: Solve for x
   x = 1,187,960,484,096/703,458
6. Step 6: Final answer
   x = 1,688,744.01