Finding the Third Proportional to 156,333 and 336,781.50

Step by Step Solution

1. Step 1: Write the proportion equation
   156,333 : 336,781.50 = 336,781.50 : x
2. Step 2: Convert to fraction form
   156,333/336,781.50 = 336,781.50/x
3. Step 3: Cross multiply
   156,333x = 336,781.50 × 336,781.50
4. Step 4: Simplify right side
   156,333x = 113,421,778,742.25
5. Step 5: Solve for x
   x = 113,421,778,742.25/156,333
6. Step 6: Final answer
   x = 725,513.99