Finding the Third Proportional to 14,685,621 and 31,811,974.50

Step by Step Solution

1. Step 1: Write the proportion equation
   14,685,621 : 31,811,974.50 = 31,811,974.50 : x
2. Step 2: Convert to fraction form
   14,685,621/31,811,974.50 = 31,811,974.50/x
3. Step 3: Cross multiply
   14,685,621x = 31,811,974.50 × 31,811,974.50
4. Step 4: Simplify right side
   14,685,621x = 1,012,001,721,588,650.25
5. Step 5: Solve for x
   x = 1,012,001,721,588,650.25/14,685,621
6. Step 6: Final answer
   x = 68,911,060.80