Finding the Third Proportional to 400,269 and 623,368.50

Step by Step Solution

1. Step 1: Write the proportion equation
   400,269 : 623,368.50 = 623,368.50 : x
2. Step 2: Convert to fraction form
   400,269/623,368.50 = 623,368.50/x
3. Step 3: Cross multiply
   400,269x = 623,368.50 × 623,368.50
4. Step 4: Simplify right side
   400,269x = 388,588,286,792.25
5. Step 5: Solve for x
   x = 388,588,286,792.25/400,269
6. Step 6: Final answer
   x = 970,817.84