Finding the Third Proportional to 19,802,686.50 and 31,509,967.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,802,686.50 : 31,509,967.50 = 31,509,967.50 : x
2. Step 2: Convert to fraction form
   19,802,686.50/31,509,967.50 = 31,509,967.50/x
3. Step 3: Cross multiply
   19,802,686.50x = 31,509,967.50 × 31,509,967.50
4. Step 4: Simplify right side
   19,802,686.50x = 992,878,051,851,056.25
5. Step 5: Solve for x
   x = 992,878,051,851,056.25/19,802,686.50
6. Step 6: Final answer
   x = 50,138,553.26