Finding the Third Proportional to 910,142 and 1,979,128

Step by Step Solution

1. Step 1: Write the proportion equation
   910,142 : 1,979,128 = 1,979,128 : x
2. Step 2: Convert to fraction form
   910,142/1,979,128 = 1,979,128/x
3. Step 3: Cross multiply
   910,142x = 1,979,128 × 1,979,128
4. Step 4: Simplify right side
   910,142x = 3,916,947,640,384
5. Step 5: Solve for x
   x = 3,916,947,640,384/910,142
6. Step 6: Final answer
   x = 4,303,666.51