Finding the Third Proportional to 42,904.69 and 63,688.78

Step by Step Solution

1. Step 1: Write the proportion equation
   42,904.69 : 63,688.78 = 63,688.78 : x
2. Step 2: Convert to fraction form
   42,904.69/63,688.78 = 63,688.78/x
3. Step 3: Cross multiply
   42,904.69x = 63,688.78 × 63,688.78
4. Step 4: Simplify right side
   42,904.69x = 4,056,260,857.11
5. Step 5: Solve for x
   x = 4,056,260,857.11/42,904.69
6. Step 6: Final answer
   x = 94,541.21