Finding the Third Proportional to 58,656,660 and 86,189,298

Step by Step Solution

1. Step 1: Write the proportion equation
   58,656,660 : 86,189,298 = 86,189,298 : x
2. Step 2: Convert to fraction form
   58,656,660/86,189,298 = 86,189,298/x
3. Step 3: Cross multiply
   58,656,660x = 86,189,298 × 86,189,298
4. Step 4: Simplify right side
   58,656,660x = 7,428,595,089,732,804
5. Step 5: Solve for x
   x = 7,428,595,089,732,804/58,656,660
6. Step 6: Final answer
   x = 126,645,381.61