Finding the Third Proportional to 354,992.50 and 770,174

Step by Step Solution

1. Step 1: Write the proportion equation
   354,992.50 : 770,174 = 770,174 : x
2. Step 2: Convert to fraction form
   354,992.50/770,174 = 770,174/x
3. Step 3: Cross multiply
   354,992.50x = 770,174 × 770,174
4. Step 4: Simplify right side
   354,992.50x = 593,167,990,276
5. Step 5: Solve for x
   x = 593,167,990,276/354,992.50
6. Step 6: Final answer
   x = 1,670,931.05