Finding the Third Proportional to 1,223,216 and 1,889,364

Step by Step Solution

1. Step 1: Write the proportion equation
   1,223,216 : 1,889,364 = 1,889,364 : x
2. Step 2: Convert to fraction form
   1,223,216/1,889,364 = 1,889,364/x
3. Step 3: Cross multiply
   1,223,216x = 1,889,364 × 1,889,364
4. Step 4: Simplify right side
   1,223,216x = 3,569,696,324,496
5. Step 5: Solve for x
   x = 3,569,696,324,496/1,223,216
6. Step 6: Final answer
   x = 2,918,287.80