Finding the Third Proportional to 291,240 and 622,969.50

Step by Step Solution

1. Step 1: Write the proportion equation
   291,240 : 622,969.50 = 622,969.50 : x
2. Step 2: Convert to fraction form
   291,240/622,969.50 = 622,969.50/x
3. Step 3: Cross multiply
   291,240x = 622,969.50 × 622,969.50
4. Step 4: Simplify right side
   291,240x = 388,090,997,930.25
5. Step 5: Solve for x
   x = 388,090,997,930.25/291,240
6. Step 6: Final answer
   x = 1,332,547.03