Finding the Third Proportional to 31,563,111 and 67,920,126

Step by Step Solution

1. Step 1: Write the proportion equation
   31,563,111 : 67,920,126 = 67,920,126 : x
2. Step 2: Convert to fraction form
   31,563,111/67,920,126 = 67,920,126/x
3. Step 3: Cross multiply
   31,563,111x = 67,920,126 × 67,920,126
4. Step 4: Simplify right side
   31,563,111x = 4,613,143,515,855,876
5. Step 5: Solve for x
   x = 4,613,143,515,855,876/31,563,111
6. Step 6: Final answer
   x = 146,156,173.13