Finding the Third Proportional to 297,091.50 and 439,085.25

Step by Step Solution

1. Step 1: Write the proportion equation
   297,091.50 : 439,085.25 = 439,085.25 : x
2. Step 2: Convert to fraction form
   297,091.50/439,085.25 = 439,085.25/x
3. Step 3: Cross multiply
   297,091.50x = 439,085.25 × 439,085.25
4. Step 4: Simplify right side
   297,091.50x = 192,795,856,767.56
5. Step 5: Solve for x
   x = 192,795,856,767.56/297,091.50
6. Step 6: Final answer
   x = 648,944.37