Finding the Third Proportional to 3,680,128.69 and 7,543,828.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,680,128.69 : 7,543,828.69 = 7,543,828.69 : x
2. Step 2: Convert to fraction form
   3,680,128.69/7,543,828.69 = 7,543,828.69/x
3. Step 3: Cross multiply
   3,680,128.69x = 7,543,828.69 × 7,543,828.69
4. Step 4: Simplify right side
   3,680,128.69x = 56,909,351,266,347.97
5. Step 5: Solve for x
   x = 56,909,351,266,347.97/3,680,128.69
6. Step 6: Final answer
   x = 15,463,956.86