Finding the Third Proportional to 70,672 and 99,045

Step by Step Solution

1. Step 1: Write the proportion equation
   70,672 : 99,045 = 99,045 : x
2. Step 2: Convert to fraction form
   70,672/99,045 = 99,045/x
3. Step 3: Cross multiply
   70,672x = 99,045 × 99,045
4. Step 4: Simplify right side
   70,672x = 9,809,912,025
5. Step 5: Solve for x
   x = 9,809,912,025/70,672
6. Step 6: Final answer
   x = 138,809.03