Finding the Third Proportional to 59,581,669.69 and 128,293,323.56

Step by Step Solution

1. Step 1: Write the proportion equation
   59,581,669.69 : 128,293,323.56 = 128,293,323.56 : x
2. Step 2: Convert to fraction form
   59,581,669.69/128,293,323.56 = 128,293,323.56/x
3. Step 3: Cross multiply
   59,581,669.69x = 128,293,323.56 × 128,293,323.56
4. Step 4: Simplify right side
   59,581,669.69x = 16,459,176,870,712,318
5. Step 5: Solve for x
   x = 16,459,176,870,712,318/59,581,669.69
6. Step 6: Final answer
   x = 276,245,646.64