Finding the Third Proportional to 67,315,863 and 147,445,359

Step by Step Solution

1. Step 1: Write the proportion equation
   67,315,863 : 147,445,359 = 147,445,359 : x
2. Step 2: Convert to fraction form
   67,315,863/147,445,359 = 147,445,359/x
3. Step 3: Cross multiply
   67,315,863x = 147,445,359 × 147,445,359
4. Step 4: Simplify right side
   67,315,863x = 21,740,133,890,638,880
5. Step 5: Solve for x
   x = 21,740,133,890,638,880/67,315,863
6. Step 6: Final answer
   x = 322,957,070.17