Finding the Third Proportional to 1,155,431 and 1,772,135

Step by Step Solution

1. Step 1: Write the proportion equation
   1,155,431 : 1,772,135 = 1,772,135 : x
2. Step 2: Convert to fraction form
   1,155,431/1,772,135 = 1,772,135/x
3. Step 3: Cross multiply
   1,155,431x = 1,772,135 × 1,772,135
4. Step 4: Simplify right side
   1,155,431x = 3,140,462,458,225
5. Step 5: Solve for x
   x = 3,140,462,458,225/1,155,431
6. Step 6: Final answer
   x = 2,718,000.87