Finding the Third Proportional to 294,237.75 and 623,784

Step by Step Solution

1. Step 1: Write the proportion equation
   294,237.75 : 623,784 = 623,784 : x
2. Step 2: Convert to fraction form
   294,237.75/623,784 = 623,784/x
3. Step 3: Cross multiply
   294,237.75x = 623,784 × 623,784
4. Step 4: Simplify right side
   294,237.75x = 389,106,478,656
5. Step 5: Solve for x
   x = 389,106,478,656/294,237.75
6. Step 6: Final answer
   x = 1,322,422.02