Finding the Third Proportional to 354,942 and 770,086.50

Step by Step Solution

1. Step 1: Write the proportion equation
   354,942 : 770,086.50 = 770,086.50 : x
2. Step 2: Convert to fraction form
   354,942/770,086.50 = 770,086.50/x
3. Step 3: Cross multiply
   354,942x = 770,086.50 × 770,086.50
4. Step 4: Simplify right side
   354,942x = 593,033,217,482.25
5. Step 5: Solve for x
   x = 593,033,217,482.25/354,942
6. Step 6: Final answer
   x = 1,670,789.08