Finding the Third Proportional to 702,936 and 1,089,397

Step by Step Solution

1. Step 1: Write the proportion equation
   702,936 : 1,089,397 = 1,089,397 : x
2. Step 2: Convert to fraction form
   702,936/1,089,397 = 1,089,397/x
3. Step 3: Cross multiply
   702,936x = 1,089,397 × 1,089,397
4. Step 4: Simplify right side
   702,936x = 1,186,785,823,609
5. Step 5: Solve for x
   x = 1,186,785,823,609/702,936
6. Step 6: Final answer
   x = 1,688,326.99