Finding the Third Proportional to 5,073,430 and 7,428,129

Step by Step Solution

1. Step 1: Write the proportion equation
   5,073,430 : 7,428,129 = 7,428,129 : x
2. Step 2: Convert to fraction form
   5,073,430/7,428,129 = 7,428,129/x
3. Step 3: Cross multiply
   5,073,430x = 7,428,129 × 7,428,129
4. Step 4: Simplify right side
   5,073,430x = 55,177,100,440,641
5. Step 5: Solve for x
   x = 55,177,100,440,641/5,073,430
6. Step 6: Final answer
   x = 10,875,699.56