Finding the Third Proportional to 67,296,455 and 143,919,370

Step by Step Solution

1. Step 1: Write the proportion equation
   67,296,455 : 143,919,370 = 143,919,370 : x
2. Step 2: Convert to fraction form
   67,296,455/143,919,370 = 143,919,370/x
3. Step 3: Cross multiply
   67,296,455x = 143,919,370 × 143,919,370
4. Step 4: Simplify right side
   67,296,455x = 20,712,785,061,196,900
5. Step 5: Solve for x
   x = 20,712,785,061,196,900/67,296,455
6. Step 6: Final answer
   x = 307,784,192.51