Finding the Third Proportional to 916,139 and 1,994,899

Step by Step Solution

1. Step 1: Write the proportion equation
   916,139 : 1,994,899 = 1,994,899 : x
2. Step 2: Convert to fraction form
   916,139/1,994,899 = 1,994,899/x
3. Step 3: Cross multiply
   916,139x = 1,994,899 × 1,994,899
4. Step 4: Simplify right side
   916,139x = 3,979,622,020,201
5. Step 5: Solve for x
   x = 3,979,622,020,201/916,139
6. Step 6: Final answer
   x = 4,343,906.35