Finding the Third Proportional to 2,991,194 and 4,640,439

Step by Step Solution

1. Step 1: Write the proportion equation
   2,991,194 : 4,640,439 = 4,640,439 : x
2. Step 2: Convert to fraction form
   2,991,194/4,640,439 = 4,640,439/x
3. Step 3: Cross multiply
   2,991,194x = 4,640,439 × 4,640,439
4. Step 4: Simplify right side
   2,991,194x = 21,533,674,112,721
5. Step 5: Solve for x
   x = 21,533,674,112,721/2,991,194
6. Step 6: Final answer
   x = 7,199,022.90