Finding the Third Proportional to 523,642,555 and 1,139,221,055

Step by Step Solution

1. Step 1: Write the proportion equation
   523,642,555 : 1,139,221,055 = 1,139,221,055 : x
2. Step 2: Convert to fraction form
   523,642,555/1,139,221,055 = 1,139,221,055/x
3. Step 3: Cross multiply
   523,642,555x = 1,139,221,055 × 1,139,221,055
4. Step 4: Simplify right side
   523,642,555x = 1,297,824,612,155,313,152
5. Step 5: Solve for x
   x = 1,297,824,612,155,313,152/523,642,555
6. Step 6: Final answer
   x = 2,478,455,197.66