Finding the Third Proportional to 817,641 and 1,791,072

Step by Step Solution

1. Step 1: Write the proportion equation
   817,641 : 1,791,072 = 1,791,072 : x
2. Step 2: Convert to fraction form
   817,641/1,791,072 = 1,791,072/x
3. Step 3: Cross multiply
   817,641x = 1,791,072 × 1,791,072
4. Step 4: Simplify right side
   817,641x = 3,207,938,909,184
5. Step 5: Solve for x
   x = 3,207,938,909,184/817,641
6. Step 6: Final answer
   x = 3,923,407.59