Finding the Third Proportional to 49,112,353.69 and 81,848,989.69

Step by Step Solution

1. Step 1: Write the proportion equation
   49,112,353.69 : 81,848,989.69 = 81,848,989.69 : x
2. Step 2: Convert to fraction form
   49,112,353.69/81,848,989.69 = 81,848,989.69/x
3. Step 3: Cross multiply
   49,112,353.69x = 81,848,989.69 × 81,848,989.69
4. Step 4: Simplify right side
   49,112,353.69x = 6,699,257,112,864,481
5. Step 5: Solve for x
   x = 6,699,257,112,864,481/49,112,353.69
6. Step 6: Final answer
   x = 136,406,761.43