Finding the Third Proportional to 56,410 and 78,938

Step by Step Solution

1. Step 1: Write the proportion equation
   56,410 : 78,938 = 78,938 : x
2. Step 2: Convert to fraction form
   56,410/78,938 = 78,938/x
3. Step 3: Cross multiply
   56,410x = 78,938 × 78,938
4. Step 4: Simplify right side
   56,410x = 6,231,207,844
5. Step 5: Solve for x
   x = 6,231,207,844/56,410
6. Step 6: Final answer
   x = 110,462.82