Finding the Third Proportional to 89,960,946 and 138,215,050

Step by Step Solution

1. Step 1: Write the proportion equation
   89,960,946 : 138,215,050 = 138,215,050 : x
2. Step 2: Convert to fraction form
   89,960,946/138,215,050 = 138,215,050/x
3. Step 3: Cross multiply
   89,960,946x = 138,215,050 × 138,215,050
4. Step 4: Simplify right side
   89,960,946x = 19,103,400,046,502,500
5. Step 5: Solve for x
   x = 19,103,400,046,502,500/89,960,946
6. Step 6: Final answer
   x = 212,352,147.19