Finding the Third Proportional to 42,913.50 and 91,407

Step by Step Solution

1. Step 1: Write the proportion equation
   42,913.50 : 91,407 = 91,407 : x
2. Step 2: Convert to fraction form
   42,913.50/91,407 = 91,407/x
3. Step 3: Cross multiply
   42,913.50x = 91,407 × 91,407
4. Step 4: Simplify right side
   42,913.50x = 8,355,239,649
5. Step 5: Solve for x
   x = 8,355,239,649/42,913.50
6. Step 6: Final answer
   x = 194,699.56