Finding the Third Proportional to 418,468 and 907,784

Step by Step Solution

1. Step 1: Write the proportion equation
   418,468 : 907,784 = 907,784 : x
2. Step 2: Convert to fraction form
   418,468/907,784 = 907,784/x
3. Step 3: Cross multiply
   418,468x = 907,784 × 907,784
4. Step 4: Simplify right side
   418,468x = 824,071,790,656
5. Step 5: Solve for x
   x = 824,071,790,656/418,468
6. Step 6: Final answer
   x = 1,969,258.80