Finding the Third Proportional to 28,439,934 and 42,958,780.50

Step by Step Solution

1. Step 1: Write the proportion equation
   28,439,934 : 42,958,780.50 = 42,958,780.50 : x
2. Step 2: Convert to fraction form
   28,439,934/42,958,780.50 = 42,958,780.50/x
3. Step 3: Cross multiply
   28,439,934x = 42,958,780.50 × 42,958,780.50
4. Step 4: Simplify right side
   28,439,934x = 1,845,456,822,047,180.25
5. Step 5: Solve for x
   x = 1,845,456,822,047,180.25/28,439,934
6. Step 6: Final answer
   x = 64,889,630.97