Finding the Third Proportional to 583,147.69 and 912,790.69

Step by Step Solution

1. Step 1: Write the proportion equation
   583,147.69 : 912,790.69 = 912,790.69 : x
2. Step 2: Convert to fraction form
   583,147.69/912,790.69 = 912,790.69/x
3. Step 3: Cross multiply
   583,147.69x = 912,790.69 × 912,790.69
4. Step 4: Simplify right side
   583,147.69x = 833,186,839,186.72
5. Step 5: Solve for x
   x = 833,186,839,186.72/583,147.69
6. Step 6: Final answer
   x = 1,428,775.00