Finding the Third Proportional to 78,716,101.50 and 171,276,619.50

Step by Step Solution

1. Step 1: Write the proportion equation
   78,716,101.50 : 171,276,619.50 = 171,276,619.50 : x
2. Step 2: Convert to fraction form
   78,716,101.50/171,276,619.50 = 171,276,619.50/x
3. Step 3: Cross multiply
   78,716,101.50x = 171,276,619.50 × 171,276,619.50
4. Step 4: Simplify right side
   78,716,101.50x = 29,335,680,387,347,780
5. Step 5: Solve for x
   x = 29,335,680,387,347,780/78,716,101.50
6. Step 6: Final answer
   x = 372,676,997.82