Finding the Third Proportional to 20,706,650 and 31,490,172

Step by Step Solution

1. Step 1: Write the proportion equation
   20,706,650 : 31,490,172 = 31,490,172 : x
2. Step 2: Convert to fraction form
   20,706,650/31,490,172 = 31,490,172/x
3. Step 3: Cross multiply
   20,706,650x = 31,490,172 × 31,490,172
4. Step 4: Simplify right side
   20,706,650x = 991,630,932,589,584
5. Step 5: Solve for x
   x = 991,630,932,589,584/20,706,650
6. Step 6: Final answer
   x = 47,889,491.18