Finding the Third Proportional to 20,706,645 and 31,490,166

Step by Step Solution

1. Step 1: Write the proportion equation
   20,706,645 : 31,490,166 = 31,490,166 : x
2. Step 2: Convert to fraction form
   20,706,645/31,490,166 = 31,490,166/x
3. Step 3: Cross multiply
   20,706,645x = 31,490,166 × 31,490,166
4. Step 4: Simplify right side
   20,706,645x = 991,630,554,707,556
5. Step 5: Solve for x
   x = 991,630,554,707,556/20,706,645
6. Step 6: Final answer
   x = 47,889,484.50