Finding the Third Proportional to 599,510,299.50 and 899,265,388.50

Step by Step Solution

1. Step 1: Write the proportion equation
   599,510,299.50 : 899,265,388.50 = 899,265,388.50 : x
2. Step 2: Convert to fraction form
   599,510,299.50/899,265,388.50 = 899,265,388.50/x
3. Step 3: Cross multiply
   599,510,299.50x = 899,265,388.50 × 899,265,388.50
4. Step 4: Simplify right side
   599,510,299.50x = 808,678,238,954,055,936
5. Step 5: Solve for x
   x = 808,678,238,954,055,936/599,510,299.50
6. Step 6: Final answer
   x = 1,348,897,991.63