Finding the Third Proportional to 413,684.72 and 890,701.31

Step by Step Solution

1. Step 1: Write the proportion equation
   413,684.72 : 890,701.31 = 890,701.31 : x
2. Step 2: Convert to fraction form
   413,684.72/890,701.31 = 890,701.31/x
3. Step 3: Cross multiply
   413,684.72x = 890,701.31 × 890,701.31
4. Step 4: Simplify right side
   413,684.72x = 793,348,828,089.22
5. Step 5: Solve for x
   x = 793,348,828,089.22/413,684.72
6. Step 6: Final answer
   x = 1,917,761.99