Finding the Third Proportional to 42,799.50 and 64,329

Step by Step Solution

1. Step 1: Write the proportion equation
   42,799.50 : 64,329 = 64,329 : x
2. Step 2: Convert to fraction form
   42,799.50/64,329 = 64,329/x
3. Step 3: Cross multiply
   42,799.50x = 64,329 × 64,329
4. Step 4: Simplify right side
   42,799.50x = 4,138,220,241
5. Step 5: Solve for x
   x = 4,138,220,241/42,799.50
6. Step 6: Final answer
   x = 96,688.52