Finding the Third Proportional to 65,003 and 99,869

Step by Step Solution

1. Step 1: Write the proportion equation
   65,003 : 99,869 = 99,869 : x
2. Step 2: Convert to fraction form
   65,003/99,869 = 99,869/x
3. Step 3: Cross multiply
   65,003x = 99,869 × 99,869
4. Step 4: Simplify right side
   65,003x = 9,973,817,161
5. Step 5: Solve for x
   x = 9,973,817,161/65,003
6. Step 6: Final answer
   x = 153,436.26