Finding the Third Proportional to 19,997.72 and 42,460.88

Step by Step Solution

1. Step 1: Write the proportion equation
   19,997.72 : 42,460.88 = 42,460.88 : x
2. Step 2: Convert to fraction form
   19,997.72/42,460.88 = 42,460.88/x
3. Step 3: Cross multiply
   19,997.72x = 42,460.88 × 42,460.88
4. Step 4: Simplify right side
   19,997.72x = 1,802,925,905.77
5. Step 5: Solve for x
   x = 1,802,925,905.77/19,997.72
6. Step 6: Final answer
   x = 90,156.58