Finding the Third Proportional to 156,421,742 and 213,019,714

Step by Step Solution

1. Step 1: Write the proportion equation
   156,421,742 : 213,019,714 = 213,019,714 : x
2. Step 2: Convert to fraction form
   156,421,742/213,019,714 = 213,019,714/x
3. Step 3: Cross multiply
   156,421,742x = 213,019,714 × 213,019,714
4. Step 4: Simplify right side
   156,421,742x = 45,377,398,552,641,792
5. Step 5: Solve for x
   x = 45,377,398,552,641,792/156,421,742
6. Step 6: Final answer
   x = 290,096,491.53