Finding the Third Proportional to 1,973,453 and 4,315,978

Step by Step Solution

1. Step 1: Write the proportion equation
   1,973,453 : 4,315,978 = 4,315,978 : x
2. Step 2: Convert to fraction form
   1,973,453/4,315,978 = 4,315,978/x
3. Step 3: Cross multiply
   1,973,453x = 4,315,978 × 4,315,978
4. Step 4: Simplify right side
   1,973,453x = 18,627,666,096,484
5. Step 5: Solve for x
   x = 18,627,666,096,484/1,973,453
6. Step 6: Final answer
   x = 9,439,123.25