Finding the Third Proportional to 780,881.50 and 1,181,157

Step by Step Solution

1. Step 1: Write the proportion equation
   780,881.50 : 1,181,157 = 1,181,157 : x
2. Step 2: Convert to fraction form
   780,881.50/1,181,157 = 1,181,157/x
3. Step 3: Cross multiply
   780,881.50x = 1,181,157 × 1,181,157
4. Step 4: Simplify right side
   780,881.50x = 1,395,131,858,649
5. Step 5: Solve for x
   x = 1,395,131,858,649/780,881.50
6. Step 6: Final answer
   x = 1,786,611.49