Finding the Third Proportional to 423,942 and 898,428

Step by Step Solution

1. Step 1: Write the proportion equation
   423,942 : 898,428 = 898,428 : x
2. Step 2: Convert to fraction form
   423,942/898,428 = 898,428/x
3. Step 3: Cross multiply
   423,942x = 898,428 × 898,428
4. Step 4: Simplify right side
   423,942x = 807,172,871,184
5. Step 5: Solve for x
   x = 807,172,871,184/423,942
6. Step 6: Final answer
   x = 1,903,970.05