Finding the Third Proportional to 42,029 and 90,430

Step by Step Solution

1. Step 1: Write the proportion equation
   42,029 : 90,430 = 90,430 : x
2. Step 2: Convert to fraction form
   42,029/90,430 = 90,430/x
3. Step 3: Cross multiply
   42,029x = 90,430 × 90,430
4. Step 4: Simplify right side
   42,029x = 8,177,584,900
5. Step 5: Solve for x
   x = 8,177,584,900/42,029
6. Step 6: Final answer
   x = 194,570.06