Finding the Third Proportional to 409,606.88 and 891,111.38

Step by Step Solution

1. Step 1: Write the proportion equation
   409,606.88 : 891,111.38 = 891,111.38 : x
2. Step 2: Convert to fraction form
   409,606.88/891,111.38 = 891,111.38/x
3. Step 3: Cross multiply
   409,606.88x = 891,111.38 × 891,111.38
4. Step 4: Simplify right side
   409,606.88x = 794,079,482,654.39
5. Step 5: Solve for x
   x = 794,079,482,654.39/409,606.88
6. Step 6: Final answer
   x = 1,938,638.07