Finding the Third Proportional to 438,641.50 and 956,609

Step by Step Solution

1. Step 1: Write the proportion equation
   438,641.50 : 956,609 = 956,609 : x
2. Step 2: Convert to fraction form
   438,641.50/956,609 = 956,609/x
3. Step 3: Cross multiply
   438,641.50x = 956,609 × 956,609
4. Step 4: Simplify right side
   438,641.50x = 915,100,778,881
5. Step 5: Solve for x
   x = 915,100,778,881/438,641.50
6. Step 6: Final answer
   x = 2,086,215.69