Finding the Third Proportional to 31,038,005 and 73,165,196

Step by Step Solution

1. Step 1: Write the proportion equation
   31,038,005 : 73,165,196 = 73,165,196 : x
2. Step 2: Convert to fraction form
   31,038,005/73,165,196 = 73,165,196/x
3. Step 3: Cross multiply
   31,038,005x = 73,165,196 × 73,165,196
4. Step 4: Simplify right side
   31,038,005x = 5,353,145,905,718,416
5. Step 5: Solve for x
   x = 5,353,145,905,718,416/31,038,005
6. Step 6: Final answer
   x = 172,470,682.50