Finding the Third Proportional to 42,443,546 and 86,447,878

Step by Step Solution

1. Step 1: Write the proportion equation
   42,443,546 : 86,447,878 = 86,447,878 : x
2. Step 2: Convert to fraction form
   42,443,546/86,447,878 = 86,447,878/x
3. Step 3: Cross multiply
   42,443,546x = 86,447,878 × 86,447,878
4. Step 4: Simplify right side
   42,443,546x = 7,473,235,610,702,884
5. Step 5: Solve for x
   x = 7,473,235,610,702,884/42,443,546
6. Step 6: Final answer
   x = 176,074,723.13