Finding the Third Proportional to 19,709,356.50 and 42,142,525.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,709,356.50 : 42,142,525.50 = 42,142,525.50 : x
2. Step 2: Convert to fraction form
   19,709,356.50/42,142,525.50 = 42,142,525.50/x
3. Step 3: Cross multiply
   19,709,356.50x = 42,142,525.50 × 42,142,525.50
4. Step 4: Simplify right side
   19,709,356.50x = 1,775,992,455,518,150.25
5. Step 5: Solve for x
   x = 1,775,992,455,518,150.25/19,709,356.50
6. Step 6: Final answer
   x = 90,109,104.04