Finding the Third Proportional to 342,806.50 and 738,295

Step by Step Solution

1. Step 1: Write the proportion equation
   342,806.50 : 738,295 = 738,295 : x
2. Step 2: Convert to fraction form
   342,806.50/738,295 = 738,295/x
3. Step 3: Cross multiply
   342,806.50x = 738,295 × 738,295
4. Step 4: Simplify right side
   342,806.50x = 545,079,507,025
5. Step 5: Solve for x
   x = 545,079,507,025/342,806.50
6. Step 6: Final answer
   x = 1,590,050.09