Finding the Third Proportional to 77,747,563.50 and 170,139,280.50

Step by Step Solution

1. Step 1: Write the proportion equation
   77,747,563.50 : 170,139,280.50 = 170,139,280.50 : x
2. Step 2: Convert to fraction form
   77,747,563.50/170,139,280.50 = 170,139,280.50/x
3. Step 3: Cross multiply
   77,747,563.50x = 170,139,280.50 × 170,139,280.50
4. Step 4: Simplify right side
   77,747,563.50x = 28,947,374,769,057,680
5. Step 5: Solve for x
   x = 28,947,374,769,057,680/77,747,563.50
6. Step 6: Final answer
   x = 372,325,169.64