Finding the Third Proportional to 38,216.81 and 81,075.94

Step by Step Solution

1. Step 1: Write the proportion equation
   38,216.81 : 81,075.94 = 81,075.94 : x
2. Step 2: Convert to fraction form
   38,216.81/81,075.94 = 81,075.94/x
3. Step 3: Cross multiply
   38,216.81x = 81,075.94 × 81,075.94
4. Step 4: Simplify right side
   38,216.81x = 6,573,307,641.50
5. Step 5: Solve for x
   x = 6,573,307,641.50/38,216.81
6. Step 6: Final answer
   x = 172,000.42