Finding the Third Proportional to 791,072 and 1,638,184

Step by Step Solution

1. Step 1: Write the proportion equation
   791,072 : 1,638,184 = 1,638,184 : x
2. Step 2: Convert to fraction form
   791,072/1,638,184 = 1,638,184/x
3. Step 3: Cross multiply
   791,072x = 1,638,184 × 1,638,184
4. Step 4: Simplify right side
   791,072x = 2,683,646,817,856
5. Step 5: Solve for x
   x = 2,683,646,817,856/791,072
6. Step 6: Final answer
   x = 3,392,417.91