Finding the Third Proportional to 20,993,912 and 31,381,572

Step by Step Solution

1. Step 1: Write the proportion equation
   20,993,912 : 31,381,572 = 31,381,572 : x
2. Step 2: Convert to fraction form
   20,993,912/31,381,572 = 31,381,572/x
3. Step 3: Cross multiply
   20,993,912x = 31,381,572 × 31,381,572
4. Step 4: Simplify right side
   20,993,912x = 984,803,061,191,184
5. Step 5: Solve for x
   x = 984,803,061,191,184/20,993,912
6. Step 6: Final answer
   x = 46,908,983.00