Finding the Third Proportional to 42,911,973 and 64,761,625.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,911,973 : 64,761,625.50 = 64,761,625.50 : x
2. Step 2: Convert to fraction form
   42,911,973/64,761,625.50 = 64,761,625.50/x
3. Step 3: Cross multiply
   42,911,973x = 64,761,625.50 × 64,761,625.50
4. Step 4: Simplify right side
   42,911,973x = 4,194,068,137,402,250
5. Step 5: Solve for x
   x = 4,194,068,137,402,250/42,911,973
6. Step 6: Final answer
   x = 97,736,548.66