Finding the Third Proportional to 38,842.03 and 81,870.12

Step by Step Solution

1. Step 1: Write the proportion equation
   38,842.03 : 81,870.12 = 81,870.12 : x
2. Step 2: Convert to fraction form
   38,842.03/81,870.12 = 81,870.12/x
3. Step 3: Cross multiply
   38,842.03x = 81,870.12 × 81,870.12
4. Step 4: Simplify right side
   38,842.03x = 6,702,716,088.29
5. Step 5: Solve for x
   x = 6,702,716,088.29/38,842.03
6. Step 6: Final answer
   x = 172,563.48