Finding the Third Proportional to 19,549,336.50 and 42,126,208.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,549,336.50 : 42,126,208.50 = 42,126,208.50 : x
2. Step 2: Convert to fraction form
   19,549,336.50/42,126,208.50 = 42,126,208.50/x
3. Step 3: Cross multiply
   19,549,336.50x = 42,126,208.50 × 42,126,208.50
4. Step 4: Simplify right side
   19,549,336.50x = 1,774,617,442,585,472.25
5. Step 5: Solve for x
   x = 1,774,617,442,585,472.25/19,549,336.50
6. Step 6: Final answer
   x = 90,776,351.54