Finding the Third Proportional to 770,086.50 and 1,197,129

Step by Step Solution

1. Step 1: Write the proportion equation
   770,086.50 : 1,197,129 = 1,197,129 : x
2. Step 2: Convert to fraction form
   770,086.50/1,197,129 = 1,197,129/x
3. Step 3: Cross multiply
   770,086.50x = 1,197,129 × 1,197,129
4. Step 4: Simplify right side
   770,086.50x = 1,433,117,842,641
5. Step 5: Solve for x
   x = 1,433,117,842,641/770,086.50
6. Step 6: Final answer
   x = 1,860,982.94