Finding the Third Proportional to 312,203 and 736,747.50

Step by Step Solution

1. Step 1: Write the proportion equation
   312,203 : 736,747.50 = 736,747.50 : x
2. Step 2: Convert to fraction form
   312,203/736,747.50 = 736,747.50/x
3. Step 3: Cross multiply
   312,203x = 736,747.50 × 736,747.50
4. Step 4: Simplify right side
   312,203x = 542,796,878,756.25
5. Step 5: Solve for x
   x = 542,796,878,756.25/312,203
6. Step 6: Final answer
   x = 1,738,602.38