Finding the Third Proportional to 42,938 and 64,731

Step by Step Solution

1. Step 1: Write the proportion equation
   42,938 : 64,731 = 64,731 : x
2. Step 2: Convert to fraction form
   42,938/64,731 = 64,731/x
3. Step 3: Cross multiply
   42,938x = 64,731 × 64,731
4. Step 4: Simplify right side
   42,938x = 4,190,102,361
5. Step 5: Solve for x
   x = 4,190,102,361/42,938
6. Step 6: Final answer
   x = 97,584.94