Finding the Third Proportional to 42,072.84 and 90,056.91

Step by Step Solution

1. Step 1: Write the proportion equation
   42,072.84 : 90,056.91 = 90,056.91 : x
2. Step 2: Convert to fraction form
   42,072.84/90,056.91 = 90,056.91/x
3. Step 3: Cross multiply
   42,072.84x = 90,056.91 × 90,056.91
4. Step 4: Simplify right side
   42,072.84x = 8,110,246,363.32
5. Step 5: Solve for x
   x = 8,110,246,363.32/42,072.84
6. Step 6: Final answer
   x = 192,766.77