Finding the Third Proportional to 623,497 and 939,457.50

Step by Step Solution

1. Step 1: Write the proportion equation
   623,497 : 939,457.50 = 939,457.50 : x
2. Step 2: Convert to fraction form
   623,497/939,457.50 = 939,457.50/x
3. Step 3: Cross multiply
   623,497x = 939,457.50 × 939,457.50
4. Step 4: Simplify right side
   623,497x = 882,580,394,306.25
5. Step 5: Solve for x
   x = 882,580,394,306.25/623,497
6. Step 6: Final answer
   x = 1,415,532.70