Finding the Third Proportional to 917,043 and 2,157,764

Step by Step Solution

1. Step 1: Write the proportion equation
   917,043 : 2,157,764 = 2,157,764 : x
2. Step 2: Convert to fraction form
   917,043/2,157,764 = 2,157,764/x
3. Step 3: Cross multiply
   917,043x = 2,157,764 × 2,157,764
4. Step 4: Simplify right side
   917,043x = 4,655,945,479,696
5. Step 5: Solve for x
   x = 4,655,945,479,696/917,043
6. Step 6: Final answer
   x = 5,077,128.86