Finding the Third Proportional to 789,780.38 and 1,128,603.38

Step by Step Solution

1. Step 1: Write the proportion equation
   789,780.38 : 1,128,603.38 = 1,128,603.38 : x
2. Step 2: Convert to fraction form
   789,780.38/1,128,603.38 = 1,128,603.38/x
3. Step 3: Cross multiply
   789,780.38x = 1,128,603.38 × 1,128,603.38
4. Step 4: Simplify right side
   789,780.38x = 1,273,745,578,061.39
5. Step 5: Solve for x
   x = 1,273,745,578,061.39/789,780.38
6. Step 6: Final answer
   x = 1,612,784.54