Finding the Third Proportional to 1,289,152 and 2,684,164

Step by Step Solution

1. Step 1: Write the proportion equation
   1,289,152 : 2,684,164 = 2,684,164 : x
2. Step 2: Convert to fraction form
   1,289,152/2,684,164 = 2,684,164/x
3. Step 3: Cross multiply
   1,289,152x = 2,684,164 × 2,684,164
4. Step 4: Simplify right side
   1,289,152x = 7,204,736,378,896
5. Step 5: Solve for x
   x = 7,204,736,378,896/1,289,152
6. Step 6: Final answer
   x = 5,588,740.80