Finding the Third Proportional to 89,613,077 and 138,399,822

Step by Step Solution

1. Step 1: Write the proportion equation
   89,613,077 : 138,399,822 = 138,399,822 : x
2. Step 2: Convert to fraction form
   89,613,077/138,399,822 = 138,399,822/x
3. Step 3: Cross multiply
   89,613,077x = 138,399,822 × 138,399,822
4. Step 4: Simplify right side
   89,613,077x = 19,154,510,729,631,684
5. Step 5: Solve for x
   x = 19,154,510,729,631,684/89,613,077
6. Step 6: Final answer
   x = 213,746,825.47