Finding the Third Proportional to 156,789 and 344,791.50

Step by Step Solution

1. Step 1: Write the proportion equation
   156,789 : 344,791.50 = 344,791.50 : x
2. Step 2: Convert to fraction form
   156,789/344,791.50 = 344,791.50/x
3. Step 3: Cross multiply
   156,789x = 344,791.50 × 344,791.50
4. Step 4: Simplify right side
   156,789x = 118,881,178,472.25
5. Step 5: Solve for x
   x = 118,881,178,472.25/156,789
6. Step 6: Final answer
   x = 758,223.97