Finding the Third Proportional to 312,237 and 736,834.50

Step by Step Solution

1. Step 1: Write the proportion equation
   312,237 : 736,834.50 = 736,834.50 : x
2. Step 2: Convert to fraction form
   312,237/736,834.50 = 736,834.50/x
3. Step 3: Cross multiply
   312,237x = 736,834.50 × 736,834.50
4. Step 4: Simplify right side
   312,237x = 542,925,080,390.25
5. Step 5: Solve for x
   x = 542,925,080,390.25/312,237
6. Step 6: Final answer
   x = 1,738,823.65