Finding the Third Proportional to 290,271,096 and 626,718,672

Step by Step Solution

1. Step 1: Write the proportion equation
   290,271,096 : 626,718,672 = 626,718,672 : x
2. Step 2: Convert to fraction form
   290,271,096/626,718,672 = 626,718,672/x
3. Step 3: Cross multiply
   290,271,096x = 626,718,672 × 626,718,672
4. Step 4: Simplify right side
   290,271,096x = 392,776,293,833,443,584
5. Step 5: Solve for x
   x = 392,776,293,833,443,584/290,271,096
6. Step 6: Final answer
   x = 1,353,136,082.94