Finding the Third Proportional to 42,237.38 and 91,445.63

Step by Step Solution

1. Step 1: Write the proportion equation
   42,237.38 : 91,445.63 = 91,445.63 : x
2. Step 2: Convert to fraction form
   42,237.38/91,445.63 = 91,445.63/x
3. Step 3: Cross multiply
   42,237.38x = 91,445.63 × 91,445.63
4. Step 4: Simplify right side
   42,237.38x = 8,362,302,331.64
5. Step 5: Solve for x
   x = 8,362,302,331.64/42,237.38
6. Step 6: Final answer
   x = 197,983.48