Finding the Third Proportional to 21,215,720 and 45,812,056

Step by Step Solution

1. Step 1: Write the proportion equation
   21,215,720 : 45,812,056 = 45,812,056 : x
2. Step 2: Convert to fraction form
   21,215,720/45,812,056 = 45,812,056/x
3. Step 3: Cross multiply
   21,215,720x = 45,812,056 × 45,812,056
4. Step 4: Simplify right side
   21,215,720x = 2,098,744,474,947,136
5. Step 5: Solve for x
   x = 2,098,744,474,947,136/21,215,720
6. Step 6: Final answer
   x = 98,924,027.79