Finding the Third Proportional to 359,883 and 780,789.38

Step by Step Solution

1. Step 1: Write the proportion equation
   359,883 : 780,789.38 = 780,789.38 : x
2. Step 2: Convert to fraction form
   359,883/780,789.38 = 780,789.38/x
3. Step 3: Cross multiply
   359,883x = 780,789.38 × 780,789.38
4. Step 4: Simplify right side
   359,883x = 609,632,048,112.89
5. Step 5: Solve for x
   x = 609,632,048,112.89/359,883
6. Step 6: Final answer
   x = 1,693,972.90