Finding the Third Proportional to 39,609,872 and 85,076,658

Step by Step Solution

1. Step 1: Write the proportion equation
   39,609,872 : 85,076,658 = 85,076,658 : x
2. Step 2: Convert to fraction form
   39,609,872/85,076,658 = 85,076,658/x
3. Step 3: Cross multiply
   39,609,872x = 85,076,658 × 85,076,658
4. Step 4: Simplify right side
   39,609,872x = 7,238,037,736,448,964
5. Step 5: Solve for x
   x = 7,238,037,736,448,964/39,609,872
6. Step 6: Final answer
   x = 182,733,176.63