Finding the Third Proportional to 156,815 and 333,858.50

Step by Step Solution

1. Step 1: Write the proportion equation
   156,815 : 333,858.50 = 333,858.50 : x
2. Step 2: Convert to fraction form
   156,815/333,858.50 = 333,858.50/x
3. Step 3: Cross multiply
   156,815x = 333,858.50 × 333,858.50
4. Step 4: Simplify right side
   156,815x = 111,461,498,022.25
5. Step 5: Solve for x
   x = 111,461,498,022.25/156,815
6. Step 6: Final answer
   x = 710,783.39