Finding the Third Proportional to 1,085,489 and 1,620,032

Step by Step Solution

1. Step 1: Write the proportion equation
   1,085,489 : 1,620,032 = 1,620,032 : x
2. Step 2: Convert to fraction form
   1,085,489/1,620,032 = 1,620,032/x
3. Step 3: Cross multiply
   1,085,489x = 1,620,032 × 1,620,032
4. Step 4: Simplify right side
   1,085,489x = 2,624,503,681,024
5. Step 5: Solve for x
   x = 2,624,503,681,024/1,085,489
6. Step 6: Final answer
   x = 2,417,807.72