Finding the Third Proportional to 660,973.50 and 891,810

Step by Step Solution

1. Step 1: Write the proportion equation
   660,973.50 : 891,810 = 891,810 : x
2. Step 2: Convert to fraction form
   660,973.50/891,810 = 891,810/x
3. Step 3: Cross multiply
   660,973.50x = 891,810 × 891,810
4. Step 4: Simplify right side
   660,973.50x = 795,325,076,100
5. Step 5: Solve for x
   x = 795,325,076,100/660,973.50
6. Step 6: Final answer
   x = 1,203,263.18