Finding the Third Proportional to 35,488.13 and 78,357.38

Step by Step Solution

1. Step 1: Write the proportion equation
   35,488.13 : 78,357.38 = 78,357.38 : x
2. Step 2: Convert to fraction form
   35,488.13/78,357.38 = 78,357.38/x
3. Step 3: Cross multiply
   35,488.13x = 78,357.38 × 78,357.38
4. Step 4: Simplify right side
   35,488.13x = 6,139,878,216.89
5. Step 5: Solve for x
   x = 6,139,878,216.89/35,488.13
6. Step 6: Final answer
   x = 173,012.19