Finding the Third Proportional to 297,080.50 and 641,506

Step by Step Solution

1. Step 1: Write the proportion equation
   297,080.50 : 641,506 = 641,506 : x
2. Step 2: Convert to fraction form
   297,080.50/641,506 = 641,506/x
3. Step 3: Cross multiply
   297,080.50x = 641,506 × 641,506
4. Step 4: Simplify right side
   297,080.50x = 411,529,948,036
5. Step 5: Solve for x
   x = 411,529,948,036/297,080.50
6. Step 6: Final answer
   x = 1,385,247.26