Finding the Third Proportional to 42,487.03 and 83,880.56

Step by Step Solution

1. Step 1: Write the proportion equation
   42,487.03 : 83,880.56 = 83,880.56 : x
2. Step 2: Convert to fraction form
   42,487.03/83,880.56 = 83,880.56/x
3. Step 3: Cross multiply
   42,487.03x = 83,880.56 × 83,880.56
4. Step 4: Simplify right side
   42,487.03x = 7,035,948,765.32
5. Step 5: Solve for x
   x = 7,035,948,765.32/42,487.03
6. Step 6: Final answer
   x = 165,602.27