Finding the Third Proportional to 31,889 and 70,069

Step by Step Solution

1. Step 1: Write the proportion equation
   31,889 : 70,069 = 70,069 : x
2. Step 2: Convert to fraction form
   31,889/70,069 = 70,069/x
3. Step 3: Cross multiply
   31,889x = 70,069 × 70,069
4. Step 4: Simplify right side
   31,889x = 4,909,664,761
5. Step 5: Solve for x
   x = 4,909,664,761/31,889
6. Step 6: Final answer
   x = 153,961.08