Finding the Third Proportional to 45,780.19 and 68,419.69

Step by Step Solution

1. Step 1: Write the proportion equation
   45,780.19 : 68,419.69 = 68,419.69 : x
2. Step 2: Convert to fraction form
   45,780.19/68,419.69 = 68,419.69/x
3. Step 3: Cross multiply
   45,780.19x = 68,419.69 × 68,419.69
4. Step 4: Simplify right side
   45,780.19x = 4,681,253,637.60
5. Step 5: Solve for x
   x = 4,681,253,637.60/45,780.19
6. Step 6: Final answer
   x = 102,255.01