Finding the Third Proportional to 112,156 and 236,978

Step by Step Solution

1. Step 1: Write the proportion equation
   112,156 : 236,978 = 236,978 : x
2. Step 2: Convert to fraction form
   112,156/236,978 = 236,978/x
3. Step 3: Cross multiply
   112,156x = 236,978 × 236,978
4. Step 4: Simplify right side
   112,156x = 56,158,572,484
5. Step 5: Solve for x
   x = 56,158,572,484/112,156
6. Step 6: Final answer
   x = 500,718.40