Finding the Third Proportional to 523,138.50 and 740,442

Step by Step Solution

1. Step 1: Write the proportion equation
   523,138.50 : 740,442 = 740,442 : x
2. Step 2: Convert to fraction form
   523,138.50/740,442 = 740,442/x
3. Step 3: Cross multiply
   523,138.50x = 740,442 × 740,442
4. Step 4: Simplify right side
   523,138.50x = 548,254,355,364
5. Step 5: Solve for x
   x = 548,254,355,364/523,138.50
6. Step 6: Final answer
   x = 1,048,009.95