Finding the Third Proportional to 191,374 and 406,942

Step by Step Solution

1. Step 1: Write the proportion equation
   191,374 : 406,942 = 406,942 : x
2. Step 2: Convert to fraction form
   191,374/406,942 = 406,942/x
3. Step 3: Cross multiply
   191,374x = 406,942 × 406,942
4. Step 4: Simplify right side
   191,374x = 165,601,791,364
5. Step 5: Solve for x
   x = 165,601,791,364/191,374
6. Step 6: Final answer
   x = 865,330.67