Finding the Third Proportional to 415,634.50 and 893,428

Step by Step Solution

1. Step 1: Write the proportion equation
   415,634.50 : 893,428 = 893,428 : x
2. Step 2: Convert to fraction form
   415,634.50/893,428 = 893,428/x
3. Step 3: Cross multiply
   415,634.50x = 893,428 × 893,428
4. Step 4: Simplify right side
   415,634.50x = 798,213,591,184
5. Step 5: Solve for x
   x = 798,213,591,184/415,634.50
6. Step 6: Final answer
   x = 1,920,470.01