Finding the Third Proportional to 1,289,154 and 2,684,168

Step by Step Solution

1. Step 1: Write the proportion equation
   1,289,154 : 2,684,168 = 2,684,168 : x
2. Step 2: Convert to fraction form
   1,289,154/2,684,168 = 2,684,168/x
3. Step 3: Cross multiply
   1,289,154x = 2,684,168 × 2,684,168
4. Step 4: Simplify right side
   1,289,154x = 7,204,757,852,224
5. Step 5: Solve for x
   x = 7,204,757,852,224/1,289,154
6. Step 6: Final answer
   x = 5,588,748.79