Finding the Third Proportional to 156,927 and 386,942

Step by Step Solution

1. Step 1: Write the proportion equation
   156,927 : 386,942 = 386,942 : x
2. Step 2: Convert to fraction form
   156,927/386,942 = 386,942/x
3. Step 3: Cross multiply
   156,927x = 386,942 × 386,942
4. Step 4: Simplify right side
   156,927x = 149,724,111,364
5. Step 5: Solve for x
   x = 149,724,111,364/156,927
6. Step 6: Final answer
   x = 954,100.39