Finding the Third Proportional to 20,531,853 and 31,780,699.31

Step by Step Solution

1. Step 1: Write the proportion equation
   20,531,853 : 31,780,699.31 = 31,780,699.31 : x
2. Step 2: Convert to fraction form
   20,531,853/31,780,699.31 = 31,780,699.31/x
3. Step 3: Cross multiply
   20,531,853x = 31,780,699.31 × 31,780,699.31
4. Step 4: Simplify right side
   20,531,853x = 1,010,012,848,791,538
5. Step 5: Solve for x
   x = 1,010,012,848,791,538/20,531,853
6. Step 6: Final answer
   x = 49,192,483.93