Finding the Third Proportional to 42,788 and 63,830

Step by Step Solution

1. Step 1: Write the proportion equation
   42,788 : 63,830 = 63,830 : x
2. Step 2: Convert to fraction form
   42,788/63,830 = 63,830/x
3. Step 3: Cross multiply
   42,788x = 63,830 × 63,830
4. Step 4: Simplify right side
   42,788x = 4,074,268,900
5. Step 5: Solve for x
   x = 4,074,268,900/42,788
6. Step 6: Final answer
   x = 95,219.90