Finding the Third Proportional to 291,237 and 622,963.50

Step by Step Solution

1. Step 1: Write the proportion equation
   291,237 : 622,963.50 = 622,963.50 : x
2. Step 2: Convert to fraction form
   291,237/622,963.50 = 622,963.50/x
3. Step 3: Cross multiply
   291,237x = 622,963.50 × 622,963.50
4. Step 4: Simplify right side
   291,237x = 388,083,522,332.25
5. Step 5: Solve for x
   x = 388,083,522,332.25/291,237
6. Step 6: Final answer
   x = 1,332,535.09