Finding the Third Proportional to 1,994,140 and 4,349,180

Step by Step Solution

1. Step 1: Write the proportion equation
   1,994,140 : 4,349,180 = 4,349,180 : x
2. Step 2: Convert to fraction form
   1,994,140/4,349,180 = 4,349,180/x
3. Step 3: Cross multiply
   1,994,140x = 4,349,180 × 4,349,180
4. Step 4: Simplify right side
   1,994,140x = 18,915,366,672,400
5. Step 5: Solve for x
   x = 18,915,366,672,400/1,994,140
6. Step 6: Final answer
   x = 9,485,475.78