Finding the Third Proportional to 191,594 and 388,651

Step by Step Solution

1. Step 1: Write the proportion equation
   191,594 : 388,651 = 388,651 : x
2. Step 2: Convert to fraction form
   191,594/388,651 = 388,651/x
3. Step 3: Cross multiply
   191,594x = 388,651 × 388,651
4. Step 4: Simplify right side
   191,594x = 151,049,599,801
5. Step 5: Solve for x
   x = 151,049,599,801/191,594
6. Step 6: Final answer
   x = 788,383.77