Finding the Third Proportional to 42,161.63 and 90,300.38

Step by Step Solution

1. Step 1: Write the proportion equation
   42,161.63 : 90,300.38 = 90,300.38 : x
2. Step 2: Convert to fraction form
   42,161.63/90,300.38 = 90,300.38/x
3. Step 3: Cross multiply
   42,161.63x = 90,300.38 × 90,300.38
4. Step 4: Simplify right side
   42,161.63x = 8,154,157,725.14
5. Step 5: Solve for x
   x = 8,154,157,725.14/42,161.63
6. Step 6: Final answer
   x = 193,402.36