Finding the Third Proportional to 53,488.69 and 74,774.81

Step by Step Solution

1. Step 1: Write the proportion equation
   53,488.69 : 74,774.81 = 74,774.81 : x
2. Step 2: Convert to fraction form
   53,488.69/74,774.81 = 74,774.81/x
3. Step 3: Cross multiply
   53,488.69x = 74,774.81 × 74,774.81
4. Step 4: Simplify right side
   53,488.69x = 5,591,272,584.41
5. Step 5: Solve for x
   x = 5,591,272,584.41/53,488.69
6. Step 6: Final answer
   x = 104,531.87