Finding the Third Proportional to 19,580,824.50 and 42,415,959

Step by Step Solution

1. Step 1: Write the proportion equation
   19,580,824.50 : 42,415,959 = 42,415,959 : x
2. Step 2: Convert to fraction form
   19,580,824.50/42,415,959 = 42,415,959/x
3. Step 3: Cross multiply
   19,580,824.50x = 42,415,959 × 42,415,959
4. Step 4: Simplify right side
   19,580,824.50x = 1,799,113,577,889,681
5. Step 5: Solve for x
   x = 1,799,113,577,889,681/19,580,824.50
6. Step 6: Final answer
   x = 91,881,400.49