Finding the Third Proportional to 78,636,275 and 171,078,513

Step by Step Solution

1. Step 1: Write the proportion equation
   78,636,275 : 171,078,513 = 171,078,513 : x
2. Step 2: Convert to fraction form
   78,636,275/171,078,513 = 171,078,513/x
3. Step 3: Cross multiply
   78,636,275x = 171,078,513 × 171,078,513
4. Step 4: Simplify right side
   78,636,275x = 29,267,857,610,291,168
5. Step 5: Solve for x
   x = 29,267,857,610,291,168/78,636,275
6. Step 6: Final answer
   x = 372,192,828.44