Finding the Third Proportional to 623,709 and 948,685.50

Step by Step Solution

1. Step 1: Write the proportion equation
   623,709 : 948,685.50 = 948,685.50 : x
2. Step 2: Convert to fraction form
   623,709/948,685.50 = 948,685.50/x
3. Step 3: Cross multiply
   623,709x = 948,685.50 × 948,685.50
4. Step 4: Simplify right side
   623,709x = 900,004,177,910.25
5. Step 5: Solve for x
   x = 900,004,177,910.25/623,709
6. Step 6: Final answer
   x = 1,442,987.32