Finding the Third Proportional to 157,282.50 and 342,212

Step by Step Solution

1. Step 1: Write the proportion equation
   157,282.50 : 342,212 = 342,212 : x
2. Step 2: Convert to fraction form
   157,282.50/342,212 = 342,212/x
3. Step 3: Cross multiply
   157,282.50x = 342,212 × 342,212
4. Step 4: Simplify right side
   157,282.50x = 117,109,052,944
5. Step 5: Solve for x
   x = 117,109,052,944/157,282.50
6. Step 6: Final answer
   x = 744,577.77