Finding the Third Proportional to 30,066.19 and 64,899.28

Step by Step Solution

1. Step 1: Write the proportion equation
   30,066.19 : 64,899.28 = 64,899.28 : x
2. Step 2: Convert to fraction form
   30,066.19/64,899.28 = 64,899.28/x
3. Step 3: Cross multiply
   30,066.19x = 64,899.28 × 64,899.28
4. Step 4: Simplify right side
   30,066.19x = 4,211,916,706.77
5. Step 5: Solve for x
   x = 4,211,916,706.77/30,066.19
6. Step 6: Final answer
   x = 140,088.15