Finding the Third Proportional to 1,089,528 and 1,690,956

Step by Step Solution

1. Step 1: Write the proportion equation
   1,089,528 : 1,690,956 = 1,690,956 : x
2. Step 2: Convert to fraction form
   1,089,528/1,690,956 = 1,690,956/x
3. Step 3: Cross multiply
   1,089,528x = 1,690,956 × 1,690,956
4. Step 4: Simplify right side
   1,089,528x = 2,859,332,193,936
5. Step 5: Solve for x
   x = 2,859,332,193,936/1,089,528
6. Step 6: Final answer
   x = 2,624,376.97