Finding the Third Proportional to 872,140,434 and 1,340,540,243

Step by Step Solution

1. Step 1: Write the proportion equation
   872,140,434 : 1,340,540,243 = 1,340,540,243 : x
2. Step 2: Convert to fraction form
   872,140,434/1,340,540,243 = 1,340,540,243/x
3. Step 3: Cross multiply
   872,140,434x = 1,340,540,243 × 1,340,540,243
4. Step 4: Simplify right side
   872,140,434x = 1,797,048,143,102,499,072
5. Step 5: Solve for x
   x = 1,797,048,143,102,499,072/872,140,434
6. Step 6: Final answer
   x = 2,060,503,186.24