Finding the Third Proportional to 411,120 and 915,664.50

Step by Step Solution

1. Step 1: Write the proportion equation
   411,120 : 915,664.50 = 915,664.50 : x
2. Step 2: Convert to fraction form
   411,120/915,664.50 = 915,664.50/x
3. Step 3: Cross multiply
   411,120x = 915,664.50 × 915,664.50
4. Step 4: Simplify right side
   411,120x = 838,441,476,560.25
5. Step 5: Solve for x
   x = 838,441,476,560.25/411,120
6. Step 6: Final answer
   x = 2,039,408.14