Finding the Third Proportional to 702,929 and 1,089,386

Step by Step Solution

1. Step 1: Write the proportion equation
   702,929 : 1,089,386 = 1,089,386 : x
2. Step 2: Convert to fraction form
   702,929/1,089,386 = 1,089,386/x
3. Step 3: Cross multiply
   702,929x = 1,089,386 × 1,089,386
4. Step 4: Simplify right side
   702,929x = 1,186,761,856,996
5. Step 5: Solve for x
   x = 1,186,761,856,996/702,929
6. Step 6: Final answer
   x = 1,688,309.71