Finding the Third Proportional to 19,830 and 42,925.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,830 : 42,925.50 = 42,925.50 : x
2. Step 2: Convert to fraction form
   19,830/42,925.50 = 42,925.50/x
3. Step 3: Cross multiply
   19,830x = 42,925.50 × 42,925.50
4. Step 4: Simplify right side
   19,830x = 1,842,598,550.25
5. Step 5: Solve for x
   x = 1,842,598,550.25/19,830
6. Step 6: Final answer
   x = 92,919.75