Finding the Third Proportional to 269,427 and 438,022.50

Step by Step Solution

1. Step 1: Write the proportion equation
   269,427 : 438,022.50 = 438,022.50 : x
2. Step 2: Convert to fraction form
   269,427/438,022.50 = 438,022.50/x
3. Step 3: Cross multiply
   269,427x = 438,022.50 × 438,022.50
4. Step 4: Simplify right side
   269,427x = 191,863,710,506.25
5. Step 5: Solve for x
   x = 191,863,710,506.25/269,427
6. Step 6: Final answer
   x = 712,117.61