Finding the Third Proportional to 156,791 and 343,606

Step by Step Solution

1. Step 1: Write the proportion equation
   156,791 : 343,606 = 343,606 : x
2. Step 2: Convert to fraction form
   156,791/343,606 = 343,606/x
3. Step 3: Cross multiply
   156,791x = 343,606 × 343,606
4. Step 4: Simplify right side
   156,791x = 118,065,083,236
5. Step 5: Solve for x
   x = 118,065,083,236/156,791
6. Step 6: Final answer
   x = 753,009.31