Finding the Third Proportional to 631,156 and 1,358,540

Step by Step Solution

1. Step 1: Write the proportion equation
   631,156 : 1,358,540 = 1,358,540 : x
2. Step 2: Convert to fraction form
   631,156/1,358,540 = 1,358,540/x
3. Step 3: Cross multiply
   631,156x = 1,358,540 × 1,358,540
4. Step 4: Simplify right side
   631,156x = 1,845,630,931,600
5. Step 5: Solve for x
   x = 1,845,630,931,600/631,156
6. Step 6: Final answer
   x = 2,924,207.22