Finding the Third Proportional to 78,636,273 and 171,078,508.50

Step by Step Solution

1. Step 1: Write the proportion equation
   78,636,273 : 171,078,508.50 = 171,078,508.50 : x
2. Step 2: Convert to fraction form
   78,636,273/171,078,508.50 = 171,078,508.50/x
3. Step 3: Cross multiply
   78,636,273x = 171,078,508.50 × 171,078,508.50
4. Step 4: Simplify right side
   78,636,273x = 29,267,856,070,584,572
5. Step 5: Solve for x
   x = 29,267,856,070,584,572/78,636,273
6. Step 6: Final answer
   x = 372,192,818.33